JPH11131949A - Blind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To operate a stopper device by sliding a rotational control bar to a head box in the axial direction of the rotational control bar without rubbing cords against each other. SOLUTION: A stopper device 24 is constituted of a first fastening member 26 and a second fastening member 28 capable of moving between a position defining the movement of a rising and falling cord 22 by fastening the position to the first fastening member 26 and the other position not defining the movement of the rising and falling cord 22 by releasing the fastening. The second fastening member 28 is connected to the neighborhood of the upper end of a rotational control bar 20 through an interlocking device 30, at the same time, the rotational control bar 20 is slidable to a head box 12 in the axial direction of the rotational control bar 20, and the second fastening member 28 is moved between the position defining the movement of the rising and falling cord 22 and the other position not defining the movement of the rising and falling cord 22 by sliding the rotational control bar 20.

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 capable of operating a stopper device for restraining the movement of a lifting cord by a rotating operation rod.

[0002]

2. Description of the Related Art Conventionally, blinds of this type have been disclosed in Japanese Patent Application Laid-Open No. 7-217338 and Japanese Patent Application Laid-Open No. 8-303152.
Is described in Japanese Patent Application Publication No. JP-A-7-21733
No. 8, the stopper device disposed in the head box mainly includes a first fastening member, a position for fastening the first fastening member to restrain the movement of the elevating cord, and a fastening device. Is released and is movable between a position where the movement of the lifting cord is not restricted and a second fastening member,
One end of a stopper release cord is connected to the second fastening member. After the other end of the stopper release cord is drawn out of the head box, insert a hollow rotary operation rod,
It is connected to a grip provided at the lower end of the rotary operation rod. Accordingly, by pulling the grip downward, the second fastening member is separated from the first fastening member, and the restraint of the elevating cord can be released.

[0003] Further, in the apparatus described in Japanese Patent Application Laid-Open No. 8-303152, a self-weight drop prevention device is provided in a head box to allow movement of a lifting cord by the weight of a slat. The operation is performed by lowering the operation rod.

[0004]

However, in the apparatus described in Japanese Patent Application Laid-Open No. Hei 7-217338, since both the lifting cord and the stopper releasing cord are inserted through the hollow rotary operation rod, the lifting cord is not provided. Since the stopper releasing cord is stopped when the cord is lifted and lowered, there is a problem that the cords are rubbed against each other due to relative movement of the cords and are easily worn.

[0005] Further, in the apparatus described in Japanese Patent Application Laid-Open No. 8-303152, the self-weight descent prevention device is operated by lowering the operation rod. Rather than moving along the direction, it must be operated by rocking the operating rod about an angle adjustment axis arranged along the longitudinal direction of the headbox. The person who operates the blind does not always face the operating rod, and may pull it diagonally from the front or diagonally from the side, in which case the operating rod will not swing properly. Therefore, there is a problem that the self-weight drop prevention device is not released.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to prevent a cord from rubbing and to rotate a rotary operation rod with respect to a head box. An object of the present invention is to provide a blind that can operate a stopper device by sliding in an axial direction of an operation rod.

[0007]

In order to achieve the above object, according to the present invention, there is provided a head box, a plurality of slats supported in alignment by a ladder cord, and a slat array. A bottom rail disposed at the lower end, a rotation operation rod which is led out downward from the head box and is rotated to change the inclination of each slat through a ladder cord, and one end is connected to the bottom rail. At the same time, the other end is inserted into the head box by passing through the slat array, and is lifted and lowered from the head box and inserted through the rotary operation rod, and the movement of the lifting and lowering code arranged in the head box can be restrained. A stopper device, the stopper device comprising: a first fastening member; a position fastened to the first fastening member to restrain movement of the lifting cord; A second fastening member which is released and is movable between a position where the movement of the elevating cord is not restricted and the second fastening member is connected to the vicinity of the upper end of the rotary operation rod via interlocking means. In addition, the rotary operation rod is slidable in the axial direction of the rotary operation rod with respect to the head box, and the sliding of the rotary operation rod causes the second fastening member to restrict the movement of the lifting / lowering cord; It is characterized in that it moves between positions where the movement is not restricted.

When the rotary operating rod is pulled downward, the rotary operating rod can always be slid in the axial direction by the force of the axial component. Thus, by sliding the rotary operation rod, the second fastening means is moved to a position where the movement of the lifting cord is not restricted by the interlocking means connected to the rotation operation rod, thereby enabling the movement of the lifting cord, The slat can be lowered.

According to a second aspect of the present invention, in the first aspect, the second fastening member is movable along a longitudinal direction of the head box, and the interlocking means includes:
A stopper release code and a transmission member for converting the sliding of the rotary operation rod along the axial direction into a longitudinal movement of the head box of the stopper release code are provided.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. A horizontal blind 10 shown in FIG. 1 includes a head box 12 and a head box 12.
A plurality of slats 16 supported in alignment by a plurality of ladder cords 14, a bottom rail 18 disposed at the lower end of the row of slats 16 and a rotating operation rod 20 led out from one end of the head box 12, Slat 16
Code 22 for lifting and lowering the head box 1
2 and a stopper device 24 (FIG. 2) that can restrict the movement of the lifting cord.

The rotary operation rod 20 comprises an upper operation rod 20A and a lower operation rod 20B, both of which are connected by a universal joint 20C. The upper end of the upper operation rod 20 </ b> A is located at the insertion port 1 provided at the lower front of the head box 12.
2a is introduced into the head box 12. Tilt 1
2A is provided in the head box 12, and the upper operation rod 2
The rotation shaft 12B is provided in the head box 12 in the longitudinal direction thereof so that the rotation of the rotation operation rod 20 is engaged with the upper end of the rotation shaft 12B.
A gear that transmits the rotation of the motor is built in. Rotary shaft 12B
The upper end of the ladder cord 14 is connected to a drum (not shown) attached to the drum so that the drum can be wound and unwound.
Thus, by rotating the rotation operation rod 20, the rotation of the rotation operation rod 20 becomes the rotation of the rotation shaft 12B and the drum via the tilter 12A, and one of the ladder cords 14 is pulled up. Can be made variable.

The lifting cord 22 has one end connected to the bottom rail 18 and the other end inserted into the head box 12 through the insertion holes 15 of the slats 16 row, and then is inserted into the head box 12 through the stopper device 24. 12, after passing through the upper operation rod 20A, the universal joint 20C, and the lower operation rod 20B,
It is connected to the knob 23.

As shown in FIG. 2, the stopper device 24 capable of restraining the movement of the elevating cord 22 mainly includes a first fastening member 26 fixed to the head box 12 side and a longitudinal direction of the head box 12. And a second fastening member 28 slidable on the first fastening member 2.
6 and slides between a position where the lifting cord 22 is restrained and the position where the fastening with the first fastening member 26 is released and the movement of the lifting cord 22 is not restrained. It is urged by a spring 29 in a direction of fastening with the first fastening member 26. As the stopper device 24, for example, one described in Japanese Patent Application Laid-Open No. 7-217338 or another known device can be used.

The second fastening member 28 and the upper end 20a of the rotary operation rod 20 are connected via interlocking means 30.
The interlocking means 30 includes a stopper release code 32 having one end connected to the second fastening member 28, and an L-shaped lever 34 which is a transmission member which is axially mounted on the head box 12 by a pin 34a. The L-shaped lever 34 can rotate around a pin 34a. The other end of the stopper release cord 32 is connected to one end of the L-shaped lever 34, and the other end of the L-shaped lever 34 is pivotally connected to the upper end 20a.
The rotary operation rod 20 is constantly urged upward by a spring 36 which is an elastic body inserted between the upper end portion 20a and the periphery of the insertion opening 12a of the head box 12.

The horizontal blind 1 constructed as described above
0, when the stopper device 24 is fastened and the slat 16 is completely raised as shown in FIG. 2, the rotary operation rod 20 is pulled downward in the axial direction.
The upper operation rod 20 </ b> A slides downward at the insertion opening 12 a of the head box 12 against the urging force of the spring 36. As a result, the L-shaped lever 34 rotates clockwise in FIG. 2 and pulls the stopper release cord 34 rightward in FIG.
6, the fastening is released and the lifting cord 22
Slides to a position that does not restrict the movement of. Thus, the lifting cord 22 can be freely moved, and the slat 1
The slat 16 can be lowered by the weight of the bottom rail 18 and the slat 16.

When stopping the lowering of the slat 16,
When the hand is released from the rotation operation rod 20, the rotation operation rod 20 is displaced upward by the urging force of the spring 36 until the rotation operation rod 20 interferes with the tilter 12A, and the second fastening member 28 is connected to the first fastening member 26 by the spring 29. The lever moves in the fastening direction, and the L-shaped lever 34 returns to the position shown in FIG. As described above, in the present embodiment, the stopper device 24 can be released by the operation of sliding the rotary operation rod 20 in the axial direction of the rotary operation rod 20 with respect to the head box 12.

When the slat 16 is to be lifted, the knob 23 is pulled by a known method.
Since the lifting cord 22 separates the second fastening member 28 from the first fastening member 26 against the spring 29, the lifting cord 22
Can move to raise the slat 16. When the hand is released from the knob 23, the second fastening member 28 is fastened to the first fastening member 26 again by the spring 29, and the lifting cord 2
2 is restricted.

FIGS. 4 and 5 are equivalent to FIGS. 2 and 3 showing a second embodiment of the present invention. In the figure, the first
The same members as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. The interlocking means 40 of the present embodiment includes a stopper release code 42 having one end coupled to the second fastening member 28 and the other end coupled to the upper end portion 20a of the rotary operation rod 20,
A guide roller 44 serving as a transmission member for guiding the stopper release code 42;

The horizontal blind 10 constructed as described above
In this case, as shown in FIG. 4, when the rotation device 20 is pulled downward in the axial direction from the state in which the stopper device 24 is fastened and the slat 16 is completely raised, the stopper release cord 42 is pulled downward and guided. The direction is turned by 90 ° by the roller 44 and the second fastening member 28 is pulled in the longitudinal direction of the head box 12 (rightward in FIG. 4), so that the fastening of the second fastening member 28 to the first fastening member 26 is released. Thus, the same operation and effect as those of the first embodiment can be obtained.

The stopper release codes 32 and 42 used in each of the above embodiments need not be inserted into the rotary operation rod 20 together with the lifting / lowering code 22.
The problem of rubbing against the lifting cord 22 and abrasion does not occur. Also, the assembling work is performed using the stopper release code 3
Since there is no need to insert the second and second members 42 into the rotary operation rod 20, the operation becomes simple. Even if maintenance is required, the operation may be performed only on a small number of parts.

The lower operation rod 20B of the rotary operation rod 20
Can be pulled down slightly diagonally, but universal joint 2
The axial movement of the upper operating rod 20A is transmitted to the upper operating rod 20A via the upper operating rod 20A via the upper operating rod 20A.
Of the interlocking members 30, 40
, The second fastening member 28 can be separated from the first fastening member 26.

The stopper device 24 is desirably constructed so that the second fastening member 28 moves in the longitudinal direction of the head box 12, from the viewpoint of space efficiency. However, the stopper release code of the interlocking means 30, 40 according to the present invention is preferred. 32,
42 and the L-shaped lever 34 or the guide roller 44, the head box 12
In the direction substantially perpendicular to the longitudinal direction of the head box 12 of the second fastening member 28 can be converted.

[0023]

As described above, according to the first aspect of the present invention,
According to the described invention, if the rotating operation rod is pulled downward,
Since the rotation operation rod can be slid in the axial direction by the force of the axial component, it is possible to reliably move the second fastening member to the position to be released from the first fastening member via the interlocking means. it can.

Since it is not necessary to insert the stopper release code into the rotary operation rod as in the prior art, it is possible to prevent wear due to rubbing of the code. According to the second aspect of the present invention, the movement of the rotary operation rod in a direction substantially perpendicular to the longitudinal direction of the head box is converted into the longitudinal movement of the head box of the second fastening member. Therefore, the stopper device can be arranged in a space efficient manner.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a main part of the first embodiment of the present invention, showing a state where a stopper device 24 is fastened.

FIG. 3 is a perspective view of a main part showing the first embodiment of the present invention, and shows a state where fastening of a stopper device 24 is released.

FIG. 4 is a perspective view of a main part showing a second embodiment of the present invention, and shows a state where a stopper device 24 is fastened.

FIG. 5 is a perspective view of a main part showing a second embodiment of the present invention, and shows a state where fastening of a stopper device 24 is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Horizontal blind (blind) 12 Head box 14 Ladder code 16 Slat 18 Bottom rail 20 Rotating operation rod 20a Upper end portion 22 Elevating cord 24 Stopper device 26 First fastening member 28 Second fastening member 30, 40 Interlocking means 32, 42 Stopper release Code 34 L-shaped lever (transmission member) 44 Guide roller (transmission member)

Claims (2)

[Claims] 1. A head box (12), a number of slats (16) supported in alignment by a ladder cord (14), and a bottom rail (18) arranged at the lower end of a row of slats (16). A rotation operation rod (20) that is led downward from the head box (12) and is rotated to change the inclination of each slat (16) through a ladder cord (14), and one end is a bottom rail ( 18) and the other end is inserted into the headbox (12) through the row of slats (16),
The rotating operation rod (2) drawn out of the head box (12)
0) and a stopper device (24) disposed in the head box (12) and capable of restraining the movement of the lift code (22). The stopper device (24) A first fastening member (26), a position fastened to the first fastening member (26) to restrain the movement of the lifting cord (22), and a position where the fastening is released and the movement of the lifting cord (22) is not restrained. A blind having a second fastening member (28) movable between the second fastening member (28) and the vicinity of the upper end of the rotary operating rod (20) via interlocking means (30, 40). The rotating operation rod (20) is slidable in the axial direction of the rotating operation rod (20) with respect to the headbox (12) while being connected, and the second fastening member is slid by the rotating operation rod (20). (28)
Moves between a position where the movement of the lifting code (22) is restricted and a position where the movement of the lifting code (22) is not restricted. 2. The second fastening member (28) is movable along the longitudinal direction of the head box (12), and the interlocking means (30, 40) includes a stopper release code (3).
(2, 42) and a transmission member (34, 44) for converting the sliding of the rotary operation rod (20) along the axial direction into the longitudinal movement of the head box (12) of the stopper release code (32, 42). 2. The blind according to claim 1, comprising: