JP2001323753A - Blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blind capable of connecting a ladder cord to a bottom rail with simple operation and making fine adjustment of the height size of the blind. SOLUTION: A vertical cord 14b in front and behind of the lower end of the ladder cord 14 is fixed to a locking section 30a of a tape holder 30. Under such a state, the tape holder 30 is mounted on the bottom rail 24. The height size of the blind is larger than the proper size, the tape holder 30 removed from the bottom rail 24 is rotated 180 deg. within a horizontal surface to vary the length of the ladder cord 14 locked with the locking section 30a, and then, it is mounted on the bottom rail 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind, and more particularly, to a blind having improved connection of a ladder cord to a bottom rail.

[0002]

2. Description of the Related Art In a conventional horizontal blind, FIG.
As shown in the figure, at the lower end of the ladder cord 14 that supports the slats 16 in the aligned state, the bottom rail 24 is attached to the middle cord 14a of the ladder cord 14 at the lowest stage.
Is supported. Then, the lower middle cord 14a
The lower vertical cords 14b, 14b are accommodated in through holes 24a formed in the bottom of the bottom rail 24, and a tape holder 40 covering the through holes 24a is attached to the bottom rail 24 (FIG. 6B). ), Tape holder 4
0 and the bottom rail 24, the ladder cord 14 is sandwiched between the ladder cord 14 and the bottom rail 24.
And are connected.

[0003]

However, when attaching the tape holder 40, the ladder cord 14
The work must be performed while paying attention so that the center in the front-rear direction of the lower middle cord 14a coincides with the center of the bottom rail 24. If the ladder cord 14 is shifted at the moment when the tape holder 40 is mounted. , Ladder code 14
, The length of the vertical cord 14b differs between front and rear, and the bottom rail 24 may be inclined. Tape holder 40
Is fixed relatively firmly to the bottom rail 24 in order to securely clamp the ladder cord 14 with the bottom rail 24. Therefore, it is troublesome to remove the tape holder 40 once attached from the bottom rail 24. The workability is not good.

[0004] As another problem, the height of the blind is usually manufactured in a unit of about 1 cm. However, depending on the mounting place, when the blind is completely lowered, the lower surface of the bottom rail 24 is positioned below the window frame. May touch the floor or the floor surface.Do not worry about the contact, or operate the stopper at the bottom of the window frame or just before touching the floor surface to operate the blinds so that they do not descend further. Must. However, unless careful attention is paid to lowering the blinds, it is not preferable because the bottom rail 24 generates a collision sound when it comes into contact with the lower part of the window frame or the floor surface.

Alternatively, one of the lowermost slats 16 is pulled out and the bottom rail 24 is placed thereon, and the bottom rail 2
The middle code 14a of the ladder code 14 holding
By moving up the pitch, the height of the blind can be reduced, but in this case, there is a problem that fine adjustment of one pitch or less cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first object of the present invention is to provide a blind capable of connecting a ladder cord to a bottom rail by a simple operation.

A second object of the present invention is to provide a blind capable of finely adjusting the height of the blind more finely than the conventional example with a simple operation.

[0008]

In order to achieve the above-mentioned object, a blind according to the first aspect of the present invention supports a large number of slats in an aligned state by a ladder cord suspended from a head box. The upper end of the ladder cord is connected to the ladder cord supporting device provided in the head box, and the slat is tilted by the operation of the ladder cord supporting device. In a blind in which one end of an elevating cord is connected and the other end of the elevating cord is inserted into a head box through a slat row, and the slat row and a bottom rail are raised and lowered by raising and lowering the elevating cord, a ladder is provided. Connect the vertical code before and after the lower end of the cord or the vertical code before and after The middle code, fixed to the locking portion formed in the holder became attached and removable bottom rail, by attaching the holder to the bottom rail, characterized by coupling the bottom rail to the ladder cord. Attachment of the ladder cord to the bottom rail is performed by attaching the holder to the bottom rail in a state where the ladder cord is fixed to the engaging portion of the holder in advance. Thus, the ladder cord can be easily attached without being displaced from the bottom rail at the moment when the holder is attached to the bottom rail.

According to a second aspect of the present invention, the length of a portion of the ladder cord according to the first aspect which is locked by the locking portion of the holder is variable. By changing the length of the ladder cord locked on the locking portion of the holder, the amount of the ladder cord stored between the holder and the bottom rail is changed. Thereby, the height of the blind can be finely adjusted easily by changing the length of the vertical cord of the ladder cord derived from the holder. Adjustment of the length of the ladder cord to be locked by the locking portion can be performed by rotating the holder removed from the bottom rail, for example, every half rotation in a horizontal plane.

According to a third aspect of the present invention, a winding portion is provided at the locking portion of the holder according to the second aspect, and one or more ladder cords can be wound on the winding portion. I do. By changing the number of windings on the winding unit, the length of the ladder cord locked on the locking unit of the holder can be changed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a first embodiment of a blind according to the present invention.

The horizontal blind 10 has a head box 12 attached to a wall or a ceiling via a bracket 11, and a ladder cord 14 suspended from a ladder cord support device 17 in the head box 12.
Thus, the multi-stage slats 16 are tiltably supported. The ladder cord supporting device 17 includes, for example, a shaft 18 that extends in the longitudinal direction and is rotatably supported in the head box 12, and a drum 20 to which the upper end of the ladder cord 14 is connected so as to be wound and unwound. Consists of The shaft 18 is connected via a rotation transmission mechanism (not shown)
It is connected to an operation rod 22 extending downward from the head box 12.

Below the slats 16, the bottom rail 2
4 are arranged. One end of an elevating cord 26 is connected to the bottom rail 24, and the other end of the elevating cord 26 is inserted into each slat 16, introduced into the head box 12, and guided to one end side in the width direction of the head box 12. It is derived from the headbox 12 and connected to the operation knob 27.

As shown in an enlarged manner in FIG. 2, the ladder code 14 includes front and rear vertical codes 14b and the vertical code 1b.
4b. In the bottom rail 24, through holes 24a and 24b are formed in the lower surface and the upper surface, respectively, corresponding to the width direction position of the blind in which the ladder cord 14 and the lifting cord 26 are arranged. One end 26a of the lifting cord 26 passes through the through hole 24b, and the knot 26 formed on the one end 26a is formed.
b is locked in the through hole 24 b in the bottom rail 24. In addition, the lower middle code 14 of the ladder code 14
The front and rear vertical cords 14b extending further below a
Are connected to each other by clips 28 and fixed to a tape holder 30 (see FIG. 3). That is, the tape holder 30 has a locking portion 30a formed at the center of the upper surface, and the clip 28 is fixed to the locking portion 30a by a method such as press fitting. The tape holder 30 is formed with a guide groove 30b extending from the locking portion 30a toward the front and rear ends. Further, the tape holder 30 is bent slightly inward at the front and rear ends to lock on the bottom rail 24. A second locking portion 30c is formed. As shown in FIG. 2A, with the lower end of the vertical cord 14b fixed to the tape holder 30,
The second locking portion 30c of the tape holder 30 is attached to the bottom rail 2
4 is locked to a locked portion 24c formed so as to protrude forward and backward from the lower end portion. As a result, the locking portion 30a is housed in the through hole 24a together with the clip 28 at the lower end of the ladder cord 14, and the other ladder cords 14 are led out along the guide grooves 30b. When attaching the tape holder 30 to the bottom rail 24, the lower end of the ladder cord 14 is fixed to the tape holder 30 in advance.
The bottom rail 24 is not inclined because the clip 28 serving as a connecting portion of the vertical cords 14b, 14b before and after the ladder cord 14 is always positioned at the center of the bottom rail 24 in the front-rear direction. Can be prevented.

By the way, when the height of the blind is larger than the proper dimension and the bottom rail 24 comes into contact with the lower part of the window frame or the floor surface in the state as it is, the tape holder 30 is once removed from the bottom rail 24. , FIG. 2
As shown in FIG. 3 (c), the tape holder 30
Rotate 80 degrees. As a result, the vertical cords 14b, 14
b can be entangled and twisted, and the portion locked by the locking portion 30a can be made large. After this, the tape holder 3 again
0 is attached to the bottom rail 24 (FIG. 2D). Since the twisted vertical cords 14b, 14b are locked by the locking portions 30a, the vertical lengths of the vertical cords 14b, 14b derived from the bottom rail 24 are shortened, and the height can be reduced. If the height adjustment is still not sufficient, the tape holder 30 is removed from the bottom rail 24 as shown in FIG.
Or rotate it by an integral multiple thereof. Thereby, the locking portion 3
0a, the vertical code 1 before and after the ladder code 14
Since the twists of the wires 4b and 14b increase and are accommodated in the bottom rail 24, the vertical lengths of the vertical cords 14b and 14b derived from the bottom rail 24 are shortened accordingly, and the height of the blind is reduced. Can be fine-tuned.

FIG. 4 is a partial sectional view showing another embodiment of the present invention. The tape holder 30 as in the first embodiment
Instead of twisting the front and rear vertical cords 14b, 14b, the locking portion 30a of the tape holder 30 has
A winding portion 30d is formed around the periphery of the winding portion 30d.
This is different from the previous embodiment in that the length adjustment is performed by winding the vertical cords 14b, 14b around d.
The winding portion 30d has a curved shape (see FIG. 5) to facilitate winding of the vertical cord 14b.
In order to receive the plurality of turns 4b reliably, it is preferable that the height is somewhat high.

The height of the blind can be adjusted by rotating the tape holder 30 to wind the vertical cords 14b, 14b around the winding portion 30d and attaching the tape holder 30 to the bottom rail 24 in this state. . By changing the number of rotations of the tape holder 30, the vertical cord 1
By changing the winding amount of 4b, the height of the blind can be finely adjusted. In this embodiment, every time the tape holder 30 is rotated by 180 degrees, the vertical cords 14b, 14b are wound substantially by the length of the semi-periphery of the winding portion 30d, so that only the length corresponding to the length is used. There is an advantage that the height of the blind can be changed, and the amount of change in the height of the blind every 180 degrees of rotation of the tape holder 30 can be made larger than in the first embodiment.

In each of the above embodiments, the ladder code 14
Is fixed to the tape holder 30 in advance, and therefore, it is not necessary to clamp the ladder cord 14 between the tape holder 30 and the bottom rail 24 as in the related art. It can be light,
Therefore, the attachment and detachment of the tape holder 30 to and from the bottom rail 24 can be easily performed.

In each of the above embodiments, the ladder cord 14 is locked by the locking portion 30a formed integrally with the conventional tape holder 30, and another member is required to lock the ladder code 14. Is not used, so that the number of components can be the same as in the related art.

In the above embodiment, the vertical code 1
4b and 14b are fixed to the tape holder 30. However, the present invention is not limited to this.
a to the tape holder 30, the same effect can be obtained. Alternatively, by locking the middle cord 14 a itself to the locking portion, the tape holder 3
The length of the vertical cords 14b, 14b drawn into 0 changes, so that fine adjustment of the height dimension of the blind can be performed.

[0021]

As described above, claims 1 to 3 are described.
According to the invention described above, the ladder cord can be attached to the bottom rail by attaching the holder to the bottom rail in a state where the ladder cord is fixed to the engaging portion of the holder in advance. The ladder cord can be easily attached without being displaced with respect to the bottom rail at the moment of attachment to the bottom rail.

According to the second and third aspects of the present invention, the length of the vertical cord of the ladder cord derived from the holder is changed by changing the length of the ladder cord to be locked by the locking portion of the holder. Thus, the height of the blind can be adjusted more finely than in the conventional example.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an example of a blind of the present invention.

FIGS. 2A to 2F are partial cross-sectional views illustrating an operation when the tape holder of FIG. 1 is attached to a bottom rail.

FIG. 3 is a plan view of the tape holder in a state where the ladder code of FIG. 2A is fixed.

FIG. 4 is a partial cross-sectional view illustrating a second embodiment of the present invention.

FIG. 5 is a plan view of the tape holder in a state where the ladder code of FIG. 4 is fixed.

6 (a) and 6 (b) are partial cross-sectional views illustrating an operation when connecting a conventional ladder cord to a bottom rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Blind 12 Head box 14 Ladder cord 14a Middle cord 14b Vertical cord 16 Slat 17 Ladder cord support device 24 Bottom rail 26 Elevating cord 30 Tape holder (holder) 30a Locking part 30d Winding part

Claims (3)

[Claims] A ladder cord (14) suspended from a head box (12) allows a number of slats (1) to be mounted.
6), the upper end of the ladder cord (14) is connected to a ladder cord support device (17) provided in the head box (12), and the ladder cord support device (1) is connected.
The slats (16) are tilted by the operation of (7), and the bottom rail (24) arranged below the row of slats (16) and connected to the lower end of the ladder cord (14).
And one end of the lifting / lowering cord (26) is connected to the head box (12) by inserting the other end of the lifting / lowering cord (26) through the row of slats (16).
The vertical cords (1) in front and rear of the lower end of the ladder cord (14) are moved up and down to raise and lower the slats (16) row and the bottom rail (24).
4b, 14b) or the front and rear vertical codes (14b, 1b).
4b) is fixed to an engaging portion (30a) formed on a holder (30) which can be attached to and detached from the bottom rail (24), and the holder (30) is connected to the bottom rail (24). By attaching to the rail (24), the ladder cord (14) is attached to the bottom rail (24).
A blind, characterized in that a blind is connected. 2. The holder (3) for a ladder cord (14).
2. The blind according to claim 1, wherein the length of the portion locked by the locking portion of (0) is variable. 3. An engaging portion (30a) of the holder (30).
The blind according to claim 2, wherein a winding portion (30d) is provided on the winding portion (30d), and the ladder cord (14) can be wound by one or more windings on the winding portion (30d).