JP2002054374A - Lower-limit position adjusting device for bottom rail of solar shading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adjusting device capable of easily adjusting the lower- limit position of a bottom rail without adjusting the length of a ladder cord. SOLUTION: In a solar beam shading device allows the bottom rail 5 to move up and down by means of an elevating-cord operating device so as to enable a solar shading material 7 to move up and down, the solar shading device is provided with an adjusting member 12 for permitting an elevating cord 3 to be retracted into the bottom rail 5 for the purpose of taking the lower-limit position of the bottom rail 5 as adjustable.

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 solar shading device.

[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 device for adjusting the lower limit position of the bottom rail, there has been a device capable of adjusting the lower limit position of the bottom rail by supporting a winding shaft capable of winding the lower end of the ladder cord on the bottom rail. Proposed.

As another configuration, a winding drum capable of winding the lower end of a ladder cord is supported on a tape holder, and the tape holder is fitted from below the bottom rail to set the lower limit position of the bottom rail. Adjustable devices have been proposed.

In the bottom rail lower limit position adjusting device configured as described above, the length of the ladder cord is adjusted by winding or unwinding the lower end of the ladder cord on the winding shaft or the winding drum. The lower limit position of the bottom rail was adjusted.

[0007]

However, in the adjusting device configured as described above, the lower limit position of the bottom rail is adjusted by winding the lower end of the ladder cord, so that the adjustment range is the maximum of the ladder cord. It was up to the slat supported by the lower weft.

Therefore, in order to adjust the slats by one pitch or more, it is necessary to cut off the lowermost weft thread of the ladder cord. If the weft thread is cut off once and the lower limit position of the bottom rail is adjusted, There was a problem that it was not possible to return to the original height again.

Further, the bottom rail lower limit position adjusting device having the above configuration can be applied to a horizontal blind having a ladder code, but cannot be applied to a pleated curtain or the like having no ladder code. Was.

It is an object of the present invention to provide an adjusting device capable of easily adjusting a lower limit position of a bottom rail without adjusting a length of a ladder cord.

[0011]

According to the first aspect of the present invention, in a solar shading device in which a solar shading material can be moved up and down by raising and lowering a bottom rail by a lifting cord operating device, the lifting cord is drawn into the bottom rail. By doing
An adjusting member is provided for adjusting a lower limit position of the bottom rail.

In the present invention, the adjusting member is provided on either the bottom rail or a tape holder fitted at a plurality of positions in the longitudinal direction of the bottom rail. In claim 3, the adjusting member is a winding drum rotatably supported on the bottom rail, and the winding drum can wind one end of the lifting cord.

According to a fourth aspect of the present invention, a drive shaft is inserted into the take-up drum, and the bottom rail is provided with an operating device capable of rotating the drive shaft from an end of the bottom rail. In the fifth aspect, the operating device is configured such that a cap is fitted to an end of the bottom rail, an adjustment piece is rotatably supported on the cap, and the drive shaft is fitted to the adjustment piece. The winding drum can be rotated based on the rotation of the adjustment piece.

According to a sixth aspect of the present invention, a rotation preventing device is provided between the adjustment piece and the cap to prevent rotation of the adjustment piece due to a rotational force acting on the drive shaft. Claim 7
In the above, the rotation preventing device has a configuration in which a protrusion is provided on an outer peripheral surface of the adjustment piece, and a concave portion engageable with the projection is provided on an inner circumferential surface of a cap supporting the adjustment piece.

According to another aspect of the present invention, the adjusting member is a moving member movably provided along the bottom rail, and one end of the elevating cord can be pulled into the bottom rail based on a moving operation of the moving member. And

In the ninth aspect, a support member is inserted into the bottom rail, and the support member is provided on the support member so as to be movable along the longitudinal direction of the bottom rail. A locking member for blocking is provided.

[0017]

(First Embodiment) FIGS. 1 to 5
Shows a first embodiment.

As shown in FIG. 1, a head box 1 of a horizontal blind is formed of an extruded aluminum material, and a ladder cord 2 is suspended from a plurality of portions in a longitudinal direction of the head box 1 and is parallel to the ladder cord 2. The lifting cord 3 is hung.

One end of the ladder cord 2 is attached to a bottom rail 5 by a tape holder 4, and the other end is connected to a slat angle adjusting device in the head box 1. As shown in FIG. 2, a multistage weft thread 6 is connected between the warp threads of the ladder cord 2, and a slat 7 is supported on each weft thread 6.

Then, as shown in FIG. 1, the respective slats 7 are rotated via the slat angle adjusting device and the ladder cord 2 by rotating an operation rod 8 which is suspended from one side of the head box 1. The angle can be adjusted.

The elevating cord 3 is inserted through each of the slats 7, one end of which is connected to the bottom rail 5, and the other end is guided into the head box 1, and is moved from the head box 1 into the operating rod 8. And is connected to an equalizer 9 located below the operation rod 8.

When the equalizer 9 is pulled down and the lifting cord 3 is pulled out of the head box 1, the bottom rail 5 is pulled up. When the lifting cord 3 is pulled into the head box 1 based on the weight of the bottom rail 5 and each of the slats 7, the bottom rail 5 is lowered.

As shown in FIG. 2, the bottom rail 5
Is formed of an extruded aluminum material, and the bottom rail 5
A mounting hole 10 is formed in the lower surface of the tape holder 4 at the mounting position of the tape holder 4. The tape holder 4 is curved so as to cover the lower surface of the bottom rail 5, and a support piece 11 is provided upright at the center thereof.
1, a winding drum 12 is rotatably supported.

The support piece 11 is attached to the mounting hole 10.
And the front and rear ends of the tape holder 4 can be engaged with the front and rear ends of the lower surface of the bottom rail 5.

The upper portion of the support piece 11 is curved so as to be able to abut on the upper surface of the bottom rail 5. An insertion hole 13 is formed on the upper surface of the bottom rail 5 at the position where the support piece 11 abuts. It is formed. An insertion hole 14 is formed at an upper portion of the support piece 11 at a position corresponding to the insertion hole 13 on the upper surface of the bottom rail 5, and the lifting cord 3 can be inserted into both the insertion holes 13, 14. .

An engaging portion 1 is provided on the outer peripheral surface of the winding drum 12.
The lower end of the lifting cord 3 can be attached to the locking portion 15. In addition, the winding drum 1
A hexagonal hole 16 is formed at the center of 2.

As shown in FIG. 3, caps 17a, 1 made of synthetic resin are provided at both ends of the bottom rail 5.
7b is fitted. An adjustment piece 18 made of a synthetic resin is rotatably supported by one of the caps 17a. A locking groove for engaging a Phillips screwdriver is formed on the base end face of the adjustment piece 18 as shown in FIG. 19 are formed.

As shown in FIG. 5, a plurality of projections 20a are formed on the outer peripheral surface of the base end portion of the adjustment piece 18 at regular intervals of 45 degrees from the center. Then, the cap 17
In the inner peripheral surface of the bearing hole 21a, a plurality of recesses 20b are formed at regular intervals of 45 degrees with respect to the center, and the projections 20a are engaged with the recesses 20b, respectively.

Therefore, when a plus screwdriver is engaged with the locking groove 19 of the adjustment piece 18 to rotate the same, the engagement between the projection 20a and the recess 20b is released due to the elasticity of the synthetic resin. It is designed to be rotated with respect to the cap 17a.

A shaft 22 is formed at the tip of the adjustment piece 18, and a hexagonal hole 23 is formed at the center of the shaft 22. The hexagonal hole 23 has a hexagonal rod-shaped drive shaft 24.
The drive shaft 24 is connected to the winding drum 12.
And the other end is rotatably supported by the other cap 17b.

Next, the operation of the bottom rail lower limit position adjusting device constructed as described above will be described. When the adjusting piece 18 is rotated by engaging a Phillips screwdriver in the locking groove 19 from the state shown in FIG. 2 and the winding drum 12 is rotated in the direction of the arrow via the drive shaft 24, the lifting cord 3 is wound. It is wound on a take-up drum 12.

Then, since the length of the elevating cord 3 from the head box 1 to the bottom rail 5 is shortened, the height position of the bottom rail 5 rises when the bottom rail 5 is lowered to the lower limit position. .

Therefore, with the bottom rail lower limit position adjusting device configured as described above, the following operational effects can be obtained. (1) The length of the lifting cord 3 between the head box 1 and the bottom rail 5 can be adjusted by rotating the adjustment piece 18. Therefore, the bottom rail 5
Can easily be adjusted.

(2) When the adjustment piece 18 is rotated, the winding drums 12 provided at a plurality of positions in the longitudinal direction of the bottom rail 5 are simultaneously rotated via the drive shaft 24. Therefore, it is possible to adjust the lengths of the plurality of lifting / lowering cords 3 collectively.

(3) The engagement between the projection 20a of the adjustment piece 18 and the recess 20b of the cap 17a causes the bottom rail 5
The rotation of the winding drum 12 due to its own weight can be prevented. Therefore, the adjusted lower limit position of the bottom rail 5 can be reliably maintained.

(4) The adjustment piece 18 is provided with a plurality of projections 20a, and the cap 17a is provided with a plurality of recesses 20b capable of engaging with the projections 20a. Therefore, the protrusion 20a and the recess 2
Fine adjustment work can be easily performed by changing the engagement position with 0b.

(5) The lifting cord 3 wound around the winding drum 12 at a plurality of locations in the longitudinal direction of the bottom rail 5,
Since only the same length is wound by the same drive shaft 24, the bottom rail 5 can be adjusted while maintaining the lower limit position in the horizontal direction.

(6) Adjusting the lower limit position of the bottom rail 5
Since the length of the elevating cord 3 is adjusted, it is not necessary to cut off the weft thread 6 even when the pitch is adjusted to be equal to or more than the pitch up to the slat 7 supported by the lowermost weft thread 6 of the ladder cord 2. Therefore, the lower limit position of the bottom rail 5 can be adjusted freely.

(7) Adjusting the lower limit position of the bottom rail 5
Since the length of the lifting cord 3 is adjusted, the lifting cord 3 is not exposed from the lower end of the operation rod 8 when the bottom rail 5 is lowered to the lower limit position. Therefore, the appearance is not impaired after the adjustment. (Second Embodiment) FIGS. 6 to 12 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. 6, the lower end of the ladder cord 2 is attached to the bottom rail 5 at a plurality of locations in the longitudinal direction by a tape holder 4. As shown in FIG. 7, a support member 25 is fitted into the bottom rail 5 at a position where the tape holder 4 is mounted.

As shown in FIG. 8, an opening 26 is formed in the lower surface of the bottom rail 5 along the longitudinal direction thereof, and the support member 25 can be inserted through the opening 26. A movable member 27 is provided inside the support member 25 so as to be movable along its longitudinal direction.
And a lock member 28 that enables the moving member 27 to be fixed at a predetermined position of the support member 25.
Is provided.

The distal end of the support member 25 is opened so that the moving member 27 and the lock member 28 can be inserted therein, and a guide hole 29 is formed at the proximal end thereof.
The lower end of the elevating cord 3 inserted through the guide hole 29 can be connected to the base end of the moving member 27.

The tip of the moving member 27 has a pair of first
An arm 30 is formed, and the first arm 30 has flexibility and is urged outward. The support member 25 has a first engagement portion 31 formed along the longitudinal direction thereof so as to be able to engage with the tip of the first arm portion 30. Therefore, the first arm 3
The movable member 27 is movable in the longitudinal direction of the support member 25 by the engagement / disengagement operation between the distal end of the support member 25 and the first engaging portion 31.

A locking piece 3 is provided at the base end of the lock member 28.
In the state where the locking piece 32 is located at the tip of the first arm 30, that is, as shown in FIG. 8, the first arm 30 is prevented from bending inward. Thus, the moving member 27 cannot move with respect to the support member 25. On the other hand, as shown in FIG. 9, when the locking piece 32 is located at the base end of the first arm 30, the moving member 27 is movable with respect to the support member 25.

The specific structure of the moving member 27 and the lock member 28 will be described. As shown in FIG. 11, a pair of second arm portions urged inward are provided at the distal end of the lock member 28. At the base end of the moving member 27, there are formed second engaging portions 34a and 34b capable of engaging with the distal end of the second arm portion 33.

When the distal end of the second arm 33 engages with the second engaging portion 34a, the locking piece 32 is located at the base end of the first arm 30, and the moving member 2
7 can be moved. When the tip of the second arm 33 is engaged with the second engagement portion 34b, the locking piece 32 is located at the tip of the first arm 30 to move the moving member 27. It is designed to block.

Further, as shown in FIG.
7 and a lower portion of the lock member 28,
a, 28a are provided, and the operation portions 27a, 28a are formed with a number of grooves that can be hooked by fingers. Then, a finger can be hooked on the operation sections 27a and 28a from below the bottom rail 5 to move the moving member 27 and the lock member 28.

Next, the operation of the bottom rail lower limit position adjusting device for a horizontal blind constructed as described above will be described. First, the lock member 28 is moved from the state shown in FIG. 8, the locking piece 32 of the lock member 28 is positioned at the base end of the first arm 30, and the movable member 27 can be moved with respect to the support member 25. And

Next, as shown in FIG.
Is moved toward the distal end side of the support member 25. Then, the lifting cord 3 connected to the moving member 27 is drawn into the bottom rail 5 through the guide hole 29.

After the movable member 27 is moved to a desired position, the lock member 28 is operated to move the movable member 27.
Is fixed to the support member 25. In this manner, by moving the moving member 27 and the lock member 28, the length of the lifting cord 3 from the head box 1 to the bottom rail 5 can be reduced, and as shown in FIG.
When the bottom rail 5 is lowered to the lower limit position, the height position of the bottom rail 5 rises.

Accordingly, the bottom rail lower limit position adjusting device for a horizontal blind constructed as described above has the following operation and effect in addition to the operation and effect (6) and (7) in the first embodiment. Obtainable.

(1) By moving the lock member 28 to move the moving member 27 along the longitudinal direction of the support member 25, the length of the lifting cord 3 between the head box 1 and the bottom rail 5 is increased. Can be adjusted. Therefore, the lower limit position of the bottom rail 5 can be easily adjusted.

(2) By providing the lock member 28 for fixing the moving member 27 to a desired position of the support member 25, the adjusted lower limit position of the bottom rail 5 can be reliably maintained.

(3) The moving member 27 is provided so as to be movable in the longitudinal direction of the bottom rail 5, so that the lifting cord 3
Can be sufficiently secured. Therefore, the adjustment range of the lower limit position of the bottom rail 5 can be increased.

(4) The length of the lifting cord 3 is adjusted by the distance moved by the moving member 27. Therefore, the adjustment distance of the lifting cord 3 can be easily grasped, and the adjustment can be quickly performed even when the adjustment distance is large.

The above embodiments may be modified as follows. -The first and second embodiments may be applied to a horizontal blind as shown in FIG. That is, in the horizontal blind shown in FIG. 13, a slat angle adjusting operation rod 8 is suspended from one side of the head box 1, and a plurality of lifting cords 3 hang down from the head box 1 in the vicinity thereof. I have. An equalizer 9 is attached to the lower end of the elevating cord 3, and the equalizer 9
An operation code 35 is hung down from the bottom, and this operation code 35 is connected to the bottom rail 5. Then, when the operation cord 35 is pulled downward and the lifting cord 3 is pulled out of the head box 1, the bottom rail 5 is raised, and the lifting cord 3 is pulled into the head box 1 based on the weight of the bottom rail 5 and each slat 7. For example, the bottom rail 5 descends. Even when applied to such a horizontal blind, the operational effects obtained in the first and second embodiments can be obtained. -The first and second embodiments may be applied to a horizontal blind as shown in FIG. That is, in the horizontal blind shown in FIG. 14, an endless operation code 36 is hung from one side of the head box 1. By operating the operation code 36, the head box 1 is operated.
The slats 7 are angle-adjusted in phase with the slat drive device and the ladder cord 2 disposed therein,
The lifting / lowering cord 3 is wound around the lifting / lowering cord winding device so that the bottom rail 5 can be moved up and down. Even when applied to such a horizontal blind, the operational effects obtained in the first and second embodiments can be obtained. In the first and second embodiments, the present invention is applied to the horizontal blind having the ladder code 2, but may be applied to a pleated curtain or the like without the ladder code 2. -In the first embodiment, the projection 20a and the recess 20
Although b is formed at intervals of 45 degrees, other arbitrary angular intervals may be used. The distance between the projection 20a and the recess 20b is
When the degree is smaller than the degree, finer fine adjustment can be performed. -In the first embodiment, the projection 20a and the recess 20
Instead of b, any one-way clutch device may be used. In the first embodiment, the winding drum 12 may be rotatable from the lower surface of the bottom rail 5 via a worm mechanism. In the first embodiment, the lifting cord 3 is connected to the drive shaft 2
4 may be wound directly. In the second embodiment, the lower end of each elevating cord 3 may be connected to the moving member 27 so that each elevating cord 3 can be simultaneously adjusted by the same moving member 27. In the second embodiment, the lower end of the lifting cord 3 is connected to a plurality of tape holders 4 fitted to the bottom rail 5, and the lower surface of the bottom rail 5 is moved using the tape holder 4 as a moving member. May be used to adjust the length of the lifting cord 3. In the second embodiment, an operation shaft may be provided on the moving member 27 and the lock member 28, and the operation shaft may be protruded forward of the bottom rail 5 so that operation is possible from the front of the bottom rail 5. In the second embodiment, the first engaging portion 31 formed in a zigzag shape along the longitudinal direction of the support member 25 is
The present invention is not limited to this shape, and may be configured to be able to engage with the tip of the first arm 30 at a predetermined interval.

[0057]

As described above in detail, the present invention can provide an adjusting device capable of easily adjusting the lower limit position of the bottom rail without adjusting the length of the ladder cord.

[Brief description of the drawings]

FIG. 1 is a front view showing a horizontal blind according to a first embodiment.

FIG. 2 is a cross-sectional view illustrating a bottom rail lower limit position adjusting device according to the first embodiment.

FIG. 3 is a cross-sectional view illustrating a bottom rail lower limit position adjusting device according to the first embodiment.

FIG. 4 is a side view showing a bottom rail according to the first embodiment.

FIG. 5 is a side view showing the cap according to the first embodiment.

FIG. 6 is a cross-sectional view illustrating a lower limit position adjusting device according to a second embodiment.

FIG. 7 is a cross-sectional view illustrating a lower limit position adjusting device according to a second embodiment.

FIG. 8 is a cross-sectional view illustrating a lower limit position adjusting device according to a second embodiment.

FIG. 9 is a cross-sectional view illustrating a lower limit position adjusting operation according to the second embodiment.

FIG. 10 is a plan view illustrating a moving member and a lock member according to a second embodiment.

FIG. 11 is a cross-sectional view illustrating a moving member and a lock member according to a second embodiment.

FIG. 12 is a cross-sectional view illustrating a lower limit position adjustment operation according to the second embodiment.

FIG. 13 is a front view of a horizontal blind showing another application example of the first and second embodiments.

FIG. 14 is a front view of a horizontal blind showing another application example of the first and second embodiments.

[Explanation of symbols]

 3 lifting cord 5 bottom rail 7 solar shading material (slat) 12 adjusting member (winding drum) 27 adjusting member (moving member)

Claims (9)

[Claims] 1. A solar shading device in which a solar shading material can be raised and lowered by raising and lowering a bottom rail with a lifting cord operating device, wherein the lowering position of the bottom rail is drawn by drawing the raising and lowering cord into the bottom rail. A bottom rail lower limit position adjusting device for a solar shading device, comprising: an adjusting member capable of adjusting the position of the bottom rail. 2. The solar shading device according to claim 1, wherein the adjusting member is provided on one of the bottom rail and a tape holder fitted at a plurality of positions in the longitudinal direction of the bottom rail. Bottom rail lower limit position adjustment device. 3. The apparatus according to claim 1, wherein the adjusting member is a winding drum rotatably supported on the bottom rail, and one end of the lifting cord can be wound on the winding drum. 3. The bottom rail lower limit position adjusting device of the solar shading device according to any one of 2. 4. An operation device, wherein a drive shaft is inserted into said winding drum and said bottom rail is provided with an operating device capable of rotating said drive shaft from an end of said bottom rail. 4. The bottom rail lower limit position adjusting device of the solar shading device according to 3. 5. The operating device, wherein a cap is fitted to an end of the bottom rail, an adjusting piece is rotatably supported on the cap, and the drive shaft is fitted to the adjusting piece. 5. The bottom rail lower limit position adjusting device for a solar shading device according to claim 4, wherein the winding drum is rotatable on the basis of the rotating operation of the adjusting piece. 6. The device according to claim 5, wherein a rotation preventing device is provided between the adjustment piece and the cap to prevent rotation of the adjustment piece due to a rotational force acting on the drive shaft. Bottom rail lower limit position adjustment device for solar shading device. 7. The rotation preventing device has a configuration in which a projection is provided on an outer peripheral surface of the adjustment piece, and a concave portion engageable with the projection is provided on an inner peripheral surface of a cap for supporting the adjustment piece. The bottom rail lower limit position adjusting device for a solar shading device according to claim 6, characterized in that: 8. The adjusting member is a moving member provided so as to be movable along the bottom rail, and one end of the lifting cord can be pulled into the bottom rail based on a moving operation of the moving member. The bottom rail lower limit position adjusting device of the solar shading device according to any one of claims 1 to 2, characterized in that: 9. A support member is inserted into the bottom rail, and the support member is provided on the support member so as to be movable along a longitudinal direction of the bottom rail.
9. The bottom rail lower limit position adjusting device for a solar shading device according to claim 8, further comprising a lock member for preventing movement of the moving member.