JP3073692B2 - Vertical blind slat drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical blind slat drive.

[0002]

2. Description of the Related Art There is the following type of vertical blind. A large number of runners are movably supported in a hanger rail fixed to an upper frame of a window or the like. A slat suspension shaft is rotatably supported by each runner, and the slat is suspended and supported by the slat suspension shaft.

A slat transfer shaft and a slat rotation shaft are supported in the hanger rail in a parallel and rotatable manner, and the slat transfer shaft and the slat rotation shaft are penetrated by the respective runners.

The slat transfer shaft is provided with a spiral groove on the outer peripheral surface thereof, and the spiral groove is engaged only with the leading runner. And when the slat transfer shaft is rotated,
The leading runner is transported along the hanger rail. Each runner is connected by a spacer. Therefore, when the leading runner is moved in the slat withdrawing direction, the succeeding runners are sequentially pulled out, and when the leading runner is moved in the slat folding direction, the subsequent runner is sequentially pushed back by the leading runner.

[0005] Several splines are engraved on the outer peripheral surface of the slat rotating shaft in the axial direction thereof, and the splines are engaged with the respective runners. When the slat rotation shaft is rotated, the slat suspension shaft is rotated via a worm mechanism built in each runner, and the slat is rotated.

The slat transfer shaft and the slat rotation shaft are projected from one end of the hanger rail,
Each has a pulley attached. A transfer code and an angle adjustment code are mounted on each pulley.

In such a vertical blind, when the transfer cord is operated to rotate the slat transfer shaft, the leading runner is transferred and the slat is pulled out and folded. When the angle adjustment cord is operated to rotate the angle adjustment axis, the angles of the slats are adjusted in phase.

In the above vertical blind, a transfer cord and an angle adjustment cord are suspended from one end of a hanger rail. And when performing the slat transfer operation,
When operating the transfer cord and adjusting the angle of the slat, it is necessary to operate the angle adjusting cord.

Therefore, when the slat is adjusted to a desired angle after the slat transfer operation is performed, it is necessary to change the operation cord to an angle adjustment cord, and the operation is complicated. In addition, when only the slat transfer operation or the angle adjustment operation is performed, it is necessary to select one of the transfer code and the angle adjustment code that are suspended close to each other, and an unnecessary operation is performed due to an incorrect selection. Sometimes.

In order to solve such a problem, Japanese Patent Publication No. 52-49260 and Japanese Patent Publication No. 56-18
Japanese Patent No. 752 proposes a vertical blind in which a single chain can perform a slat transfer operation and an angle adjustment operation.

[0011]

[Problems to be Solved by the Invention] Japanese Patent Publication No. 52-4926
In the vertical blind disclosed in Japanese Patent Publication No. 0, when the same ball chain is operated, first, each slat is rotated in a direction orthogonal to the hanger rail, and then transferred along the hanger rail in order from the first slat. .

Therefore, even when it is desired to perform only the slat transfer operation, the slat transfer operation is complicated since the slat transfer is started after the slat is first turned at a predetermined angle. After the slat transfer operation, it is necessary to adjust the slat rotated to a predetermined angle to a desired angle, and the operation is complicated.

Further, the vertical blind described in Japanese Patent Publication No. 56-188752 has the same problem. An object of the present invention is to make it possible to transfer a slat without rotating, and to make it possible to adjust an angle without transferring a slat, while enabling a slat transfer operation and an angle adjustment operation to be performed by a common operation code, It is an object of the present invention to provide a vertical blind slat drive device capable of easily switching between a transfer operation mode and an angle adjustment operation mode.

[0014]

In order to achieve the above object, according to the present invention, a plurality of runners are movably supported in a hanger rail, and slats are respectively suspended from the runners. A slat transfer shaft and a slat rotation shaft rotatably supported by a hanger rail are inserted into each runner, and the runner is transferred within the hanger rail by operating an operating device to rotate the slat transfer shaft. Then, the slats are transported, and the operating device is mounted on one end of a hanger rail in a vertical blind that adjusts the angle of the slat by operating the operating device to rotate the slat rotating shaft. And a case that is rotatably supported by the case and has an operation code mounted thereon, and pulls one of the operation codes. And the pulley to be rotated, while being biased upward, while being movable vertically and tiltably supported on the case, the operation code is hung,
A guide member that guides the operation code to the lower side of the case, and descends by collectively pulling the operation code downward; a transfer mode that rotates the slat transfer shaft each time the guide member moves down; A mode switching unit that switches between an angle adjustment mode that rotationally drives a slat rotation shaft, and the slat transfer shaft based on rotation of the pulley by pulling one of the operation codes downward during the transfer mode. A transfer drive unit configured to rotate, a rotation drive unit configured to rotate the slat rotation shaft based on rotation of the pulley by pulling one of the operation codes downward in the angle adjustment mode; A descent preventing portion for preventing the guide member, which is tilted when one of the cords is pulled downward, from descending, and when the operation of the operation cord is stopped, As the inner member is lowerable, and composed of a biasing means for returning the tilting has been the guide member to the original position, the biasing means, when attached to the casing
Both are in contact with the upper surface of the guide member, and the guide member
It consisted of a spring that urged it to be in the upright state .

According to a second aspect of the present invention, a plurality of runners are movably supported in a hanger rail, and slats are suspended from and supported by the runners, and each runner is slat transfer shaft rotatably supported by the hanger rail. And a slat rotating shaft, respectively, and by operating an operating device to rotate and drive the slat transfer shaft, a runner is transferred within the hanger rail to transfer the slat, and the operating device is operated to operate the slat. In a vertical blind in which the angle of the slat is adjusted by rotating a slat rotation shaft, the operating device includes a case attached to one end of a hanger rail, and the slat is rotatably supported by the case. A first transmission shaft connected to the transfer shaft;
A second transmission shaft rotatably supported by the case and connected to the slat rotation shaft; a drive shaft rotatably supported by the case and rotatably driven by operation of an operating means; Any of a gear fitted to the first and second transmission shafts and a gear fitted to the drive shaft so as to be movable in the axial direction thereof and fitted to the first and second transmission shafts. A drive gear that is capable of meshing with a crab, and a switching drive unit that selects one of the gears fitted to the first and second transmission shafts by operating the operation code and meshes the drive gear. The operating means comprises a pulley attached to a drive shaft, and an operation code mounted on the pulley and capable of rotating the pulley by operating the pulley. Gears of the first transmission shaft A first position engaging the car,
A slider for moving between a second position meshing with the gear of the second transmission shaft and an operation code mounted on the pulley are guided below the case, and the operation codes are collectively pulled downward. A pressing device that generates a pressing force, and a cam device that alternately moves the slider from one of the first position and the second position to the other each time the pressing device is pressed. The pressing device is supported by the case so as to be vertically movable and tiltable in a state of being urged upward, and the operation code is mounted thereon, and the operation code is collectively pulled downward. A switching arm that moves along a guide surface provided on the case to move the guide member and presses the slider, and pulls one of the operation codes downward. A descent-preventing portion for preventing the guide member from being tilted when it is tilted, and returning the tilted guide member to its original position so that the guide member can be lowered when the operation of the operation cord is stopped. And urging means.

According to a third aspect of the present invention, the urging means comprises a spring which is attached to the case and abuts on the upper surface of the guide member to urge the guide member to be in a vertical state. did.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the vertical blind has a large number of runners 2 movably supported in a hanger rail 1 fixed to an upper frame of a window or the like. A slat suspension shaft 3 is rotatably supported by each runner 2, and a slat 4 is suspended from the slat suspension shaft 3, respectively.

A slat transfer shaft 5 and a slat rotation shaft 6 are supported in the hanger rail 1 in a parallel and rotatable manner. The slat transfer shaft 5 and the slat rotation shaft 6 pass through the respective runners 2. I have.

The slat transfer shaft 5 is provided with a spiral groove 7 on its outer peripheral surface, and the spiral groove 7 is engaged only with the leading runner 2a. Then, when the slat transfer shaft 5 is rotated, the leading runner 2 a is transferred along the hanger rail 1. Each runner 2, 2 a is connected by a spacer 8. Therefore, when the leading runner 2a is moved in the slat pull-out direction, the succeeding runner 2 is sequentially pulled out, and when the leading runner 2a is moved in the slat folding direction, the subsequent runner 2 is sequentially pushed back by the leading runner 2a.

Several splines 9 are engraved on the outer peripheral surface of the slat rotation shaft 6 in the axial direction, and the splines 9 are engaged with the respective runners 2 and 2a. Then, when the slat rotation shaft 6 is rotated, each runner 2,
The slat suspension shaft 3 is rotated via a worm mechanism built in 2a, and the slat 4 is rotated.

An operating device 10 is attached to one end of the hanger rail 1, and an operating code 11 is provided from the operating device 10.
Is drooping. By operating the operation cord 11, one of the slat transfer shaft 5 and the slat rotation shaft 6 is rotated, so that the transfer operation and the angle adjustment operation of the slat 4 can be performed.

Next, the configuration of the operation device 10 will be described. As shown in FIGS. 3 and 4, the operation device 10 includes:
The first case 12 and the second case 13 are fitted and configured.

The first case 12 transmits a driving force for transmitting the rotational force of the pulley 14 rotationally driven by the operation of the operation cord 11 to one of the slat transfer shaft 5 and the slat rotating shaft 6. The part 15a is attached.
The second case 13 guides the operation cord 11 to the pulley 14 and the driving force transmission unit 15
A switching drive unit 16a is provided for enabling switching between transmitting the driving force to the slat transfer shaft 5 and the slat rotation shaft 6 at a.

The configuration of the switching drive section 16a will be described. As shown in FIG. 5 and FIG.
A partition wall 17 is formed in the vicinity of the rear surface on the bottom surface of the substrate. The height of the partition 17 is about １ ／ of the total height of the second case 13.
It is.

A support shaft 18 projects from the center of the partition wall 17 toward the drive force transmitting portion 15a.
Supports a guide member 19. That is, a long hole 20 is formed in the center of the guide member 19 in the vertical direction, and the support shaft 18 is penetrated below the long hole 20 so that the guide member 19 can move up and down on the support shaft 18. And FIG.
Are supported so as to be tiltable in the left-right direction.

An E-ring 21 acting as a stopper for the guide member 19 is fitted to the tip of the support shaft 18, and the lower end of the guide member 19 is attached to the lower surface of the second case 13. An opening 13a is provided so as to be able to protrude and descend below 13, so that the downward movement of the guide member 19 is not hindered.

A spring shaft 22 projects downward from the upper edge of the elongated hole 20, and the spring shaft 22 is inserted into a coil spring 23. The coil spring 23 is disposed in a compressed state between the upper edge of the elongated hole 20 and the support shaft 18. Therefore, the guide member 19 is always urged upward about the support shaft 18 by the urging force of the coil spring 23.

A pair of guide rollers 24a and 24b are rotatably supported on both upper sides of the guide member 19, and the endless operation cord 11 is mounted on the guide rollers 24a and 24b. That is, the endless end of the operation cord 11 is mounted on the pulley 14 and the operation cord 11
Is guided to the rear of the guide member 19 via the guide rollers 24a and 24b, and is guided below the second case 13 via a pair of guide rollers 25a and 25b rotatably supported behind the partition 17. ing.

Accordingly, if one of the operation cords 11 hanging down from the second case 13 is pulled downward, the operation cords 11 are guided by the respective guide rollers, and the pulley 14 is rotated. Further, if both of the operation cords 11 hanging from the second case 13 are pulled together, the pulley 14 is not rotated, and the operation cords 11 having the pulley 14 as a fulcrum allow the guide cords 24a, 24b to move downward. Pressing force acts. As a result, the guide member 19 is pushed down against the urging force of the coil spring 23 as shown in FIG.

On the guide member 19, the base ends of a pair of switching arms 26a and 26b are rotatably supported on the sides of the guide rollers 24a and 24b. The switching arms 26a and 26b extend obliquely downward toward the driving force transmitting portion 15a, and their tips are rounded in an arc shape.

As shown in FIGS. 5 and 9, near the lower ends of the switching arms 26a and 26b, the second case 13 has a guide extending downward in the direction of the first case 12 and then extending horizontally. Surfaces 27a and 27b are formed.

Therefore, when the guide member 19 is lowered, the switching arms 26a and 26b are rotated by contacting their ends with the guide surfaces 27a and 27b, as shown in FIG. Guided toward 15a.

As shown in FIG. 4, an eave portion 28 is formed on the upper edge of the guide member 19 on the first case 12 side, and a concave portion 29 is formed in the center of the eave portion 28. A protrusion 30 is provided on the upper side surface of the pulley 14 of the first case 12.
Is formed, and the protruding portion 30 is formed to have a width that can be inserted into the concave portion 29. Therefore, as shown in FIG.
When the guide member 19 is pressed downward in a state where the guide member 9 is not tilted, the protrusion 30 is inserted into the concave portion 29, so that the guide member 19 can be lowered as shown in FIG. Further, even if the guide member 19 is pressed downward from the state in which the guide member 19 is tilted as shown in FIG. 8, the protrusion 30 abuts on the eaves 28, so that the guide member 19 cannot be lowered. .

As shown in FIGS. 4 and 5, a leaf spring 51 is disposed above the guide member 19 in the second case 13. The leaf spring 51 is configured to curve downward toward the guide member 19,
Both ends are bent downward so that the latch portions 52
Is formed.

A screw 53 which is screwed into the upper corner of the second case 13 is inserted into the inside of the hook portion 52, and a receiving portion for supporting the hook portion 52 is provided below the screw 53. 54 are formed. Therefore, the leaf spring 51
The latching portion 52 is supported by the screw 53 and the receiving portion 54.

The intermediate portion of the leaf spring 51 abuts on the upper surface of the guide member 19, and urges the guide member 19 downward by the urging force. By pulling one of the operation cords 11 hanging down from the second case 13 downward, as shown in FIG. 8, when the guide member 19 is tilted with the support shaft 18 as a fulcrum, the upper surface corner of the guide member 19 becomes The leaf spring 51 is pushed up. Therefore, if the operation code 11 is released, the leaf spring 51 is released.
The guide member 19 automatically returns to the upright state shown in FIG.

Next, the configuration of the driving force transmitting section 15a will be described. As shown in FIG. 3, the first case 12 has a first transmission shaft 31 connected to the slat transfer shaft 5.
And a second transmission shaft 3 connected to the slat rotation shaft 6.
2 are supported in parallel and rotatably.

The first transmission shaft 31 has a hexagonal shaft portion 33 formed on its base end side, that is, on the second case 13 side, and a gear 34 is supported on the hexagonal shaft portion 33 so as to be movable in the axial direction. Have been. A coil spring 35 is disposed in a compressed state between the gear 34 and the inner surface of the first case 12, and the gear 34 is driven by the urging force of the coil spring 35 with the first case 12 as a fulcrum. , Is always located at the end of the hexagonal shaft portion 33.

The second transmission shaft 32 has a hexagonal shaft portion 36 formed on the distal end side, that is, on the slat rotation shaft 6 side, and a gear 37 is supported on the hexagonal shaft portion 36 so as to be movable in the axial direction. ing. A coil spring 38 is disposed in a compressed state between the gear 37 and the inner surface of the first case 12, and the gear 37 is actuated by the urging force of the coil spring 38 with the first case 12 as a fulcrum. , Is always located at the end of the hexagonal shaft portion 36. And the gear 34,
37 is always located at a fixed distance in the axial direction.

As shown in FIG. 11, the pulley 14
Is connected to a drive shaft 39 rotatably supported by the first case 12. As shown in FIG. 12, the drive shaft 39 is formed in a hexagonal axis shape, and is equidistant from the first and second transmission shafts 31 and 32 below the first and second transmission shafts 31 and 32. Are located apart from each other. A drive gear 40 is fitted to the drive shaft 39 so as to be movable in the axial direction, and can be engaged with one of the gears 34 and 37 with the movement.

A slider 41 is provided below the drive shaft 39.
Are supported movably in the axial direction of the drive shaft 39 with respect to the first case 12. Between the slider 41 and the first case 12, two coil springs 42 are arranged in a compressed state. Therefore, the slider 41 is always urged toward the second case 13 by the urging force of the coil spring 42.

As shown in FIG. 4, on both sides of the pulley 14, openings 4 are formed on the side surfaces of the first case 12.
3 are formed, and the end faces 41 a and 41 b of the slider 41 are exposed in the opening 43. Then, as shown in FIG. 9, the leading ends of the switching arms 26a and 26b abut against the end surfaces 41a and 41b, and the lowering of the guide member 19 causes the switching arms 26a and 26b to move toward the first case 12. When protruded, as shown in FIG. 10, the end surfaces 41a,
41b is pressed, and the slider 41 is moved against the urging force of the coil spring.

As shown in FIG. 13, a concave portion 44 is formed on the upper surface of the slider 41 so as to be engaged with a lower portion of the drive gear 40, and the drive gear 40 is rotated in the concave portion 44. When the slider 41 is moved, the driving gear 4
0 is moved along the drive shaft 39 together with the slider 41.

A cam groove 45 is formed on the lower surface of the slider 41, and a cam shaft 46 is formed on the lower surface of the first case 12.
Is supported so as to be movable in a direction orthogonal to the axial direction of the drive shaft 39. The tip of the cam shaft 46 projects into the cam groove 45.

FIG. 15 shows the shape of the cam groove 45. That is, the cam groove 45 is formed in an annular shape,
5, the cam shaft 46 orbits, and the first to third stop positions P2 to P4 for preventing the movement of the cam shaft 46 are formed on the path. Then, as shown in FIG. 9, when the end faces 41a and 41b of the slider 41 are exposed to the opening 43 of the first case 12, the cam shaft 46 is located at the origin position P1. Switching arm 26
When the camshaft 46 is moved by being pressed by a and 26, the camshaft 46 moves in the direction of the arrow A in the cam groove 45.

Then, the cam shaft 46 is moved to the first stop position P2.
Is reached, further movement of the slider 41 is prevented. In this state, when the pressing of the slider 41 by the switching arms 26a and 26b is released, the coil spring 4
The slider 41 is moved in the opposite direction by the urging force of 2, and the cam shaft 46 moves in the cam groove 45 in the direction of arrow B.

Then, the cam shaft 46 is moved to the second stop position P3
To prevent further movement of the slider 41 in the same direction. From this state, the slider 41 is pressed again by the switching arms 26a and 26b, and the slider 41 is pressed.
Is moved, the cam shaft 46 is moved in the direction of arrow A, guided to the third stop position P4, and further movement of the slider 41 in the same direction is prevented.

Next, when the pressing of the slider 41 by the switching arms 26a and 26b is released, the slider 41 is moved in the reverse direction by the urging force of the coil spring 42, and the cam shaft 46 moves in the cam groove 45 in the direction of arrow B. . Then, the slider 41 returns to the position shown in FIG.
The cam shaft 46 returns to the home position P1.

When the cam shaft 46 is located at the home position P1, the slider 41 is in the state shown in FIG. 9, and the drive gear 40 is engaged with the gear 34. When the cam shaft 46 is located at the second stop position P3, the slider 41 is in the state shown in FIG. 10, and the drive gear 40 is engaged with the gear 37.

Next, the operating device 1 configured as described above
The operation of 0 will be described. For example, as shown in FIG. 9, when one of the operation cords 11 is pulled downward in a state where the drive gear 40 is engaged with the gear 34, the pulley 14 is rotated, and the drive shaft 39 is rotated. The rotation is transmitted to the gear 34 via the drive gear 40. Then, the first transmission shaft 31 is rotated, the slat transfer shaft 5 is rotated, and for example, the slat 4 is pulled out. When the other side of the operation cord 11 is pulled downward, the pulley 14 is rotated in the reverse direction, the slat transfer shaft 5 is rotated in the reverse direction, and the slat 4 is folded.

At this time, since the operation cord 11 applies a downward operating force to only one of the guide rollers 24a and 24b of the guide member 19, the guide member 19 is inclined as shown in FIG. In this state, even if the guide member 19 attempts to descend, the eaves portion 28 comes into contact with the protrusion 30, so that the guide member 19 is prevented from descending. Therefore, since the switching arms 26a and 26b do not press the end faces 41a and 41b of the slider 41, the slider 41 is not moved.

After the transfer operation of the slat 4, the operation code 11
When the guide member 19 is released, the guide member 19 automatically returns to the upright state by the urging force of the leaf spring 51, and the eaves 28 do not come into contact with the protrusion 30 even when the guide member 19 is lowered.

From this state, when the operation code 11 is pulled down at once, the operation code 1 is
1, the same operating force acts on the guide rollers 24a and 24b of the guide member 19. Then, as shown in FIG. 7, the guide member 19 is lowered without tilting against the urging force of the coil spring 23.

When the guide member 19 is lowered, the tips of the switching arms 26a, 26b are guided by the guide surfaces 27a, 27b and move toward the first case 12, and press the end surfaces 41a, 41b of the slider 41. . Then, the slider 41 is moved, the driving gear 40 is moved with the movement of the slider 41, and the engagement between the driving gear 40 and the gear 34 is released.

At this time, the cam shaft 46 moves in the arrow A direction from the origin position P1 in the cam groove 45. When the cam shaft 46 is guided to the first stop position P2, the slider 4
One further movement is prevented. At this time, the drive gear 40 reaches a position where it meshes with the gear 37.

When the operation code 11 is released in a state where the cam shaft 46 has reached the first stop position P2, the slider 41 is pushed back by the urging force of the coil spring 42, and the cam shaft 4
6 moves in the direction of arrow B in the cam groove 45. Then, the cam shaft 46 is guided to the second stop position P3, and further movement of the slider 41 is prevented.

At this time, as shown in FIG.
0 is in a state of meshing with the gear 37. In this state, when one of the operation cords 11 is pulled downward, the pulley 14 is rotated to rotate the drive shaft 39, and the rotation of the drive shaft 39 is transmitted to the gear 37 via the drive gear 40. And
The second transmission shaft 32 is rotated with the rotation of the gear 37, the slat rotation shaft 6 is rotated, and the slat 4 is rotated.

When the camshaft 46 is guided to the first stop position P2 as described above, the teeth of the driving gear 40 are laterally connected to the teeth of the gear 37 depending on the phase relationship between the driving gear 40 and the gear 37. In this case, the
Since the coil spring 38 is compressed to allow the gear 37 to move together with the drive gear 40 as shown in FIG. 7, the damage to both gears 40 and 37 can be prevented. Then, when the drive gear 40 reaches the meshing position with the gear 37 and one of the operation cords 11 is pulled downward to slightly rotate the second transmission shaft 32, the gear 37 is biased by the coil spring 38. It is automatically meshed with the drive gear 40.

When the operation cord 11 is released after the angle adjustment operation of the slat 4, the guide member 1 is released by the urging force of the leaf spring 51.
9 automatically returns to the upright state, and the eaves 28 do not come into contact with the projections 30 even when the guide member 19 is lowered.

In this state, when the operation cords 11 are collectively pulled down again, the guide member 19 is pulled down, and the switching arms 26a and 26b press the slider 41. Then, the slider 41 is moved, and the camshaft 46 is moved.
Moves in the direction of arrow A in the cam groove 45 and is guided to the third stop position P4. At this time, the driving gear 40 is the gear 3
7 is disengaged.

When the cam shaft 46 is guided to the third stop position P4, further movement of the slider 41 is prevented.
When the operation cord 11 is released from this state, the slider 41 is pushed back by the urging force of the coil spring 42, the cam shaft 46 moves in the direction of the arrow B in the cam groove 45, and returns to the origin position P1, and the slider 41 The state shown in FIG. Then, the drive gear 40 meshes with the gear 34.

At this time, when the teeth of the drive gear 40 abut against the side of the gear 34, the coil spring 35 is compressed, and the gear 34 moves together with the drive gear 40.
As in the case of the driving gear 40 and the gear 37, both gears 4
0, 34 is prevented from being damaged.

With the operating device 10 configured as described above, the following operational effects can be obtained. (A) Each time the operation code 11 is pulled downward, the state in which the drive gear 40 meshes with the gear 34 and the state in which it meshes with the gear 37 can be alternately selected. Then, when the drive gear 40 meshes with the gear 34, the operation code 11
When one of the slats is pulled downward, the slat transfer shaft 5 is driven to rotate, and the slat 4 can be pulled out or folded. Further, if one of the operation cords 11 is pulled downward in a state where the drive gear 40 meshes with the gear 37, the slat rotation shaft 6 is driven to rotate, and the angle of the slat 4 can be adjusted. (B) When only the transfer operation of the slat 4 is to be performed,
Regardless of the rotation angle of the slat 4, if the drive gear 40 is brought into mesh with the gear 34 by pulling the operation cord 11 downward at a time, the slat 4 can be immediately transferred. Then, since there is no need to adjust the angle of the slat 4 after the transfer operation, the transfer operation of the slat can be performed quickly. (C) When only the angle adjustment operation of the slat 4 is to be performed, regardless of the transfer position of the slat 4, the operation code 11
And pulling the drive gear 40 downwards to
7, the slat 4 can be immediately adjusted in angle. Then, since it is not necessary to readjust the transfer position of the slat 4 after the angle adjustment operation, the angle adjustment operation of the slat 4 can be performed quickly. (D) Since the transfer operation and the angle adjustment operation of the slat 4 can be performed by the common operation code 11, each operation can be performed quickly. (E) If the operation cord 11 is released after the transfer operation and the angle adjustment operation of the slat 4 are performed, the guide member 19 is automatically returned to the upright state by the urging force of the leaf spring 51, and the guide member 19 is removed. It can be pulled down. Then, there is no need for the operator to return the guide member 19 to the upright state via the operation code 11.
Can be immediately performed. (F) The switching operation of the slat 4 between the transfer operation mode and the angle adjustment operation mode can be performed very easily and quickly by simply pulling the two operation cords 11 together with one hand. (G) Without visually checking the state of the guide member 19,
Since the switching operation between the transfer operation mode and the angle adjustment operation mode of the slat 4 can be performed, the degree of freedom of the mounting position of the operation device 10 can be increased.

In the above embodiment, the leaf spring 51 is used as the urging means for urging the guide member 19 to return to the upright state. However, other springs may be used.

[0065]

As described above in detail, according to the present invention, the slats can be transported without rotating, and the slats can be transported, while the slat transport operation and the angle adjusting operation can be performed by a common operation code. Thus, it is possible to provide a vertical blind slat drive device capable of adjusting the angle without any change and easily switching between the slat transfer operation mode and the angle adjustment operation mode.

[Brief description of the drawings]

FIG. 1 is a front view of a vertical blind.

FIG. 2 is a front view of a runner.

FIG. 3 is a plan view showing the operating device of the first embodiment.

FIG. 4 is an exploded perspective view of the operating device shown in FIG.

FIG. 5 is a front view showing a switching drive unit of the operating device shown in FIG. 3;

6 is a sectional view of the operating device shown in FIG.

FIG. 7 is a front view showing the operation of the switching drive unit shown in FIG.

FIG. 8 is a front view showing the operation of the switching drive unit shown in FIG.

FIG. 9 is a cross-sectional view showing the operation of the operating device shown in FIG.

FIG. 10 is a sectional view showing the operation of the operating device shown in FIG. 3;

11 is a plan sectional view showing a driving force transmission unit of the operating device shown in FIG.

FIG. 12 is a side sectional view of the driving force transmission unit shown in FIG.

FIG. 13 is a central longitudinal sectional view of the operating device shown in FIG. 3;

FIG. 14 is a plan view showing the operation of the driving force transmission unit shown in FIG.

FIG. 15 is a bottom view of the slider of the operating device shown in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Hanger rail 2 Runner 4 Slat 5 Slat transfer axis 6 Slat rotation axis 10 Operating device 11 Operation code 12, 13 Case 14 Pulley 15a Driving force transmission part (mode switching part, transfer drive part, rotation drive part) 16a Drive part (Mode switching part) 19 Guide member 30 Projection part (Descent prevention part) 51 Leaf spring (biasing means)

Claims (3)

(57) [Claims] A plurality of runners movably supported in a hanger rail, slats suspended from the runners, and a slat transfer shaft rotatably supported on the hanger rail by each runner; The slats are rotated by moving the runner in the hanger rail by rotating the slat transfer shaft by operating the operating device and operating the operating device to operate the operating device and operating the operating device. In a vertical blind in which an angle of the slat is adjusted by driving a shaft, the operating device includes: a case attached to one end of a hanger rail; and a rotatably supported by the case; And a pulley that is rotated by pulling one of its operation cords. A guide member that is supported so as to be movable downward and tiltable, and the operation code is mounted thereon, guides the operation code below the case, and descends by pulling the operation codes together downward. Each time the guide member is lowered, a mode switching unit that switches between a transfer mode in which the slat transfer shaft is rotationally driven and an angle adjustment mode in which the slat rotation shaft is rotationally driven; A transfer drive unit that rotates the slat transfer shaft based on the rotation of the pulley by pulling one of the cords downward; and the pulley by pulling one of the operation cords downward during the angle adjustment mode. A rotation drive unit configured to rotationally drive the slat rotation shaft based on rotation; and the case tilted when one of the operation cords is pulled downward. A lowering prevention unit configured to prevent the lowering of the member; and a biasing unit configured to return the tilted guide member to the original position so that the guide member can be lowered when the operation of the operation code is stopped. and, the biasing means may be attached to the case, before
The guide member comes into contact with the upper surface of the guide member, and
A vertical blind slat drive device comprising a spring that biases the slat. 2. A plurality of runners are movably supported in a hanger rail, and slats are suspended from and supported by the runners. Each of the runners has a slat transfer shaft rotatably supported by a hanger rail and a slat rotation shaft. The slats are rotated by moving the runner in the hanger rail by rotating the slat transfer shaft by operating the operating device and operating the operating device to operate the operating device and operating the operating device. In a vertical blind for adjusting the angle of the slat by rotating a shaft, the operating device includes: a case attached to one end of a hanger rail; and a rotatably supported by the case; A first transmission shaft connected to the second transmission shaft rotatably supported by the case and connected to the slat rotation shaft; A drive shaft rotatably supported by the case and driven to rotate by operation of operation means; gears respectively fitted to the first and second transmission shafts; and an axial direction with respect to the drive shaft. A drive gear that is movably fitted, and is capable of meshing with any of the gears fitted to the first and second transmission shafts, and that the first and second transmission shafts are operated by operating the operation code. A switching drive unit for selecting one of the fitted gears and meshing the drive gear, wherein the operating means is mounted on a pulley attached to a drive shaft; An operation code that enables the pulley to be rotatably driven by the operation, wherein the switching drive unit includes a first position at which the drive gear meshes with a gear of the first transmission shaft, and a gear of the second transmission shaft. Second position to engage A slider that guides an operation code mounted on the pulley below the case, and generates a pressing force when the operation codes are collectively pulled downward; and the pressing device. A cam device for alternately moving the slider from one of the first position and the second position to the other each time the device is pressed, wherein the pressing device is urged upward. A guide member that is supported by the case so as to be vertically movable and tiltable, and that has the operation code mounted thereon, and a guide member that is lowered by collectively pulling the operation codes downward; and a movement of the guide member. A switching arm that moves along a guide surface provided on the case to press the slider, and prevents a lowering of the guide member that is tilted when one of the operation codes is pulled downward. And a biasing means for returning the tilted guide member to its original position so that the guide member can be lowered when the operation of the operation code is stopped. Vertical blind slat drive. 3. The device according to claim 1, wherein the urging means is formed of a spring which is attached to the case and abuts on an upper surface of the guide member to urge the guide member to be in an upright state. The slat drive of a vertical blind according to claim 2, characterized in that: