KR20120076049A - Driving device for the blind and blind using it - Google Patents

Abstract

PURPOSE: A blind driving device and a blind with the same are provided to enable awning or blinding according to the taste of users by ascending or descending parts of blind blades. CONSTITUTION: A blind with a blind driving device(100) comprises a case(20), a blind driving device(10), a driving shaft, a knob part(40), and multiple blind blades(50). The blind driving device is installed inside the case. The driving shaft is connected to the blind driving device. The knob part is connected to the driving shaft and delivers rotating force to the driving shaft. The multiple blind blades are arranged under the case and are hung on by wires connected to the blind driving device.

Description

Blind driving device and blind comprising the same {Driving device for the blind and blind using it}

The present invention relates to a drive device for opening and closing a blind and a blind comprising the same.

Blinds are attached to windows so that they do not block sunlight or look out from the outside. The file supports the blades and is used for lifting or tilting the blades.

On the other hand, the drive device mounted on the blind is configured to wind or unwind the string by the user's operation. Such a drive is generally provided with two or more depending on the length of the blind.

Looking at the process of unfolding or walking the blind according to the prior art, the string is released or wound in the drive device by the user's operation, and thus the lowermost blind blade is lowered or raised. When the blinds are unfolded, each of the shielding blades that are laid down on the lowermost shielding wing is supported on a different row, and the shielding blades are sequentially spaced from each other from the upper shielding wing. In addition, when the blind is pulled up, the blinds are sequentially collected from the lower part of the lower part of the shielding vanes and are raised.

This conventional operation can not be arbitrarily adjusted according to the user's preference for the interval of some of the shielding blade located in the middle. Therefore, there is a problem that does not reflect the various appetite of consumers.

The present invention has been made to solve the above-described problems, and has an object of selectively lifting only some of the shielding wings.

In order to solve the above problems, the present invention is mounted to a case, coupled to a drive shaft that is rotated by a user's operation, and wound or unwound a center line connected to a plurality of shielding wings provided at the bottom of the case. In the drive device of the blind for raising the wing, the drive device is connected to the drive shaft is rotatable, the rotating body protruding a screw thread on a portion of the outer peripheral surface, coupled to the screw thread is movable sliding in the longitudinal direction of the case A blind drive device is provided that includes a slider and a setting line secured to a portion of the shielding vanes, one end of which is fixed to the slider after a change of direction in the case.

In this case, a stagnation section in which the slider detached from the screw thread may be formed at both ends of the moving body in which the screw thread is formed.

The apparatus may further include an elastic part for elastically pushing the slider staying in the stagnation section toward the screw thread.

Furthermore, the setting line may be located on the same vertical line as the center line.

On the other hand, mounted on the case, coupled to the drive shaft is rotated by the user's operation is operated, the blind drive device for lifting the plurality of screening blades provided on the lower portion of the case, the drive device is the lowest screening blade It proposes a blind drive device including a main lifting unit for elevating and a selective lifting unit for selectively elevating a part of the shielding wings.

Here, the main lifting unit is a cradle that is installed in accordance with the entrance hole formed in the lower portion of the case, mounted on the cradle, rotated by the drive shaft, the hollow inner hole guide protrusion protruding in the longitudinal direction of the case A cylindrical cylinder, a guider positioned at one end of the first cylindrical drum, corresponding to an inner hole of the first cylindrical drum, and having a guide hole formed with a thread on an inner circumferential surface thereof, and a screw thread and the guide screwed to the guide hole on an outer circumferential surface thereof. A guide groove into which the protrusion is inserted is rotated together with the first cylindrical drum and is fixed to the winding drum which is moved in the inner hole in the longitudinal direction of the case, and fixed to the screening blade at the lower end thereof, and passes through the access hole. Center cord wound on the thread of the first cylindrical drum and auxiliary cord mounted on the first cylindrical drum and supporting each blind wing It will be included.

In addition, the selection elevating portion is coupled to the other end of the first cylindrical drum, the second cylindrical drum with a screw thread protruding in the center portion of the circumferential surface, the rotation is limited in contact with the case and the sliding movement in the longitudinal direction of the case The inner circumferential surface has a slider having a coupling hole formed with a thread that can be coupled to the thread of the second cylindrical drum, and a setting line that is coupled to the part of the shielding blade, passes through the entrance hole, and is changed in a traveling direction, and is fixed to the slider. It may include.

Meanwhile, according to an embodiment of the present invention, a case, a blind drive device according to the above-described configuration, mounted inside the case, a drive shaft connected to the blind drive device, and a handle for transmitting a rotational force provided by the user to the drive shaft And a blind comprising a plurality of shielding vanes which are located at the bottom of the case and which are collected or unfolded on the strings that are pulled or unrolled by the blind drive.

According to the embodiment of the present invention, since only a part of the shielding wings can be raised or lowered, there is an advantage that the shade or the shielding can be made according to the user's taste. In particular, according to the recent building style made of windshield, there is the convenience of selectively walking only some blind wings according to eye level.

In addition, the user by rotating the handle bar in the forward or reverse direction, it is possible to operate both the opening and closing of the entire blind and part of the shielding blade has the advantage that the additional operation device is unnecessary and easy to use.

In addition, since the operation of the center line and the setting line is made by a single drive device has the advantage that can simplify the overall configuration.

In addition, the main elevating unit and the selective elevating unit can be configured separately according to the separation of the first and second cylindrical drums, thereby manufacturing the blind having only the main elevating unit, and manufacturing the blind having both the main elevating unit and the selective elevating unit. All of these have the advantage of being easily switchable.

In addition, it has the advantage that the reliability of the operation is improved by the elastic portion.

1 is a perspective view showing a blind according to an embodiment of the present invention.
FIG. 2 is a perspective view of a blind drive device employed in the embodiment of FIG. 1. FIG.
Figure 3 is an exploded perspective view of the blind drive device shown in FIG.
4 is a cross-sectional view of the main lifting portion employed in the embodiment of the present invention.
Figure 5 is a cross-sectional view showing a coupling relationship between the slider and the second cylindrical drum employed in the embodiment of the present invention.
6 to 8 is a view showing the operation relationship of the selective lifting unit employed in the present invention.
9 is a view showing the relationship between the setting line and the auxiliary line employed in the embodiment of the present invention.
10 is a view showing the operating state of the blind according to an embodiment of the present invention, (a) is a front view of the deployed state, (b) is a front view showing a state after the operation of the selective lifting unit.
11 is a front view showing a blind operating state according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the configuration, function and operation of the blind drive device and the blind including the same according to an embodiment of the present invention. However, the same reference numerals for similar or identical components are used uniformly.

Referring to FIG. 1, the blind 100 according to the embodiment of the present invention includes a case 20, a blind driving device 10 mounted inside the case 20, and a driving shaft connected to the driving device 10. 30) is connected to the drive shaft 30, the handle portion 40 for transmitting the rotational force to the drive shaft, and located in the lower portion of the case 20, the strings connected to the blind drive device 10 It includes a plurality of shield wings 50 hanging by.

The case 20 is a length member fixed to the upper part of the window or the ceiling surface. Inside the case 20, a blind driving device 10 and a driving shaft 30 for providing power to the blind driving device 10 are mounted. At this time, the blind driving device 10 may be provided in plurality according to the length of the blind. In this case, an entrance hole 210 through which strings pass is formed on a lower surface of the case 20 on which each blind driving device 10 is mounted. Each blind drive device 10 is connected to one drive shaft 30, so that all the blind drive devices are simultaneously operated by the rotation of the drive shaft.

On the other hand, the lower portion of the case 20 is provided with a plurality of shielding wings (50). The lowermost shielding blade 50A may be formed of a thick plate or the like to prevent bending and function as a weight. Each shroud blade 50 is connected to the drive device 10 by rows, and the shroud blades 50 can be lifted or tilted as they are pulled or released by the drive device 10. In particular, only a part of the shielding blades 50a and 50b positioned in the middle by the blind driving device 10 according to the embodiment of the present invention can be slightly lifted (see FIG. 10).

The handle part 40 may include a gear box 410 having an output shaft connected to the drive shaft, and a string member 420 rotating the input shaft of the gear box 410. Although not shown, the input shaft in the gearbox rotates as the string member is pulled in one direction, and transmits the rotational force to the drive shaft. If the string member is pulled in the other direction, the drive shaft rotates in the reverse direction in the opposite direction. As another example, the handle part may include a gear box having an output shaft connected to the drive shaft, and a handle bar connected to the input shaft of the gear box. That is, the output shaft of the gear box provided at one end of the case is connected to the drive shaft, the input shaft of the gear box is projected to the lower portion of the case is connected to the handle bar. In this case, the input shaft and the handle bar may be connected by a universal joint. Therefore, when the user rotates the handle bar in either direction, the drive shaft is rotated in the forward direction through the gear box. When the handlebar is rotated in the opposite direction, the drive shaft is rotated in the reverse direction.

1 and 2, the cords connected to the shielding wings are provided as a center cord Lc, an auxiliary cord Lp, and a setting cord Ls.

The center row Lc is fixed to the lowermost shielding vane 50A and the other end is connected to the driving device 10, and the lowermost shielding vane 50A is elevated according to the winding and unwinding of the center row Lc. When the lowermost shield blade 50A rises to the maximum, the other shield blades 50 are stacked on the lower shield blade 50A and collected at the bottom of the case 20. The center string Lc may be configured to pass through the hole 51 formed in the shielding blade 50.

The auxiliary line Lp supports the respective shielding vanes 50 when the blind 100 is deployed so that the shielding vanes 50 are arranged at regular intervals. Auxiliary string (Lp) may be composed of a pair of strings facing the front and rear of the shield wing and a horizontal string (Lp1) connecting the pair of strings to support the lower end of each auxiliary wing. This auxiliary line Lp may be used for tilting the screening blade 50.

The setting line Ls is selectively fixed to some of the shielding blades 50a and 50b, or supports them, and an end thereof is connected to the driving device 10. When the setting line Ls is pulled or released by the operation of the driving device 10, some of the shielding vanes 50a and 50b fixed or supported by the setting line Ls are raised or lowered. Specifically, the setting line (Ls) may be composed of a pair of strings that are applied to the front and rear of the shielding wings, and a horizontal line (Lp2) is applied only to the lower end of some shielding wings.

Alternatively, although not shown, the setting line consists of a single line passing through the hole of the cover member through which the center line passes, and is tied to the diameter of the hole at the bottom of a specific cover wing hole, so that only the cover wing when wound by the driving device It can also be configured to be raised. In addition, a clip (not shown) can be configured to snap to the center line instead of the knot. Such a clip may be a bleeding ball capable of plastic deformation that can be removed from the center row by the user. The bleeding ball is a plastic ball that is relatively easy to be deformed, such as lead, and has a diameter larger than that of a hole. At one end, a groove for inserting a center row is formed. You can do it. It can also be destroyed to remove the beads from the center row. In this case, the blind blade lifted by the center line by the blind user can be changed.

In addition, the setting line Ls may be located on a vertical line such as the center line Lc, in which case the center line Lc and the setting line Ls form substantially the same line, thereby improving appearance. That has the advantage. In addition, when the setting line and the center line are configured to pass through the same hole, it is not necessary to form a separate hole for the setting line in the shielding wing, which increases the convenience of manufacturing.

9 shows the relationship between the setting line Ls and the auxiliary line Lp. One shielding wing is supported by the horizontal line Lp1 provided in the auxiliary line Lp. That is, the interval of the horizontal line Lp1 corresponds to the vertical spaced interval of the blind blade when the blind is unfolded. On the other hand, the horizontal line (Lp2) provided in the setting line (Ls) is selectively formed to support the lower end of the screening blade to be raised by the user. In FIG. 9, the horizontal lines Lp2 of the setting lines Ls are arranged at intervals two times larger than the horizontal lines Lp1 of the auxiliary lines Lp. In this way, the operation of the setting line Ls is selectively applied only to the shield blades positioned evenly from the top. The horizontal line of the setting line can be changed according to user's request.

2 to 3, the blind driving device 10 according to the embodiment of the present invention is mounted inside the case 20, is coupled to the drive shaft 30 that is rotated by the user's operation, In the driving device of the blind to lift or lift the screening blades 50, wound or unwinding the center cord (Lc) connected to the screening blades 50 provided on the lower portion of the case 20, to the drive shaft 30 A slider 22 which is connected and rotatable in place and coupled to the screw thread 212 with a rotary screw 10A having a thread 212 protruding from a part of an outer circumferential surface thereof, and sliding in the longitudinal direction of the case 20. And it is fixed to some of the shield wings (50a, 50b), one end includes a setting line (Ls) is fixed to the slider 22 after the direction is changed in the case (20).

The rotation wheel 10A is a member that is rotated on the same axis as the drive shaft 30 by the drive shaft 30. The rotary shock 10A is provided with a cylindrical portion 211 extending along the longitudinal direction of the drive shaft 30. The screw thread 212 is formed in the middle part of this cylindrical part 211 so that it may protrude. That is, sections on which the threads are not formed are formed on both sides of the portion where the threads 212 are formed.

On the other hand, the slider 22 is a member capable of sliding in the longitudinal direction of the case 20, that is, the longitudinal direction of the drive shaft 30, while the outer surface is constrained by the case 20, the rotation is limited. In addition, the slider 22 is inserted into the cylindrical portion 211 of the rotary shock 10A and is movable. At this time, the slider 22 may be configured to slide in the longitudinal direction of the case while the rotation is limited by the rail mounted to the case.

In addition, the slider 22 may be bitten by the thread 212 at the time of rotation of the rotational wheel 10A, or may be separated from the thread 212 before and after the thread 212. In addition, the end of the setting line Ls is fixed to the slider 22. Therefore, the setting line Ls is pulled or released by the movement of the slider 22.

The setting line Ls is mounted to the slider 22 by changing the traveling direction after passing through the entrance hole 210 formed in the case 20. The drive device 10 may be further provided with a pulley (P) to help change the direction of travel of the setting line (Ls).

On the other hand, in the functional aspect, the blind driving device 10 according to the embodiment of the present invention is divided into a main lifting unit 1 for operating the center row Lc and a selective lifting unit 2 for operating the setting line Ls. Can be. One feature of the present invention is that such a main elevating unit 1 and the selective elevating unit 2 can be manufactured in one device configuration.

2 to 4, the main elevating unit 1 includes a holder 11, a first cylindrical drum 12, a guider 13, a winding drum 14, a center cord Lc, and an auxiliary cord Lp. ) Is included.

The cradle 11 is a member mounted inside the case 20, and restrains the first cylindrical drum 12 and the guider 13 from being moved in the longitudinal direction of the drive shaft 30, and the first cylindrical drum ( 12) is mounted to rotate on the same axis as the drive shaft. The lower portion of the cradle 11 is formed with a hole passing through the line corresponding to the access hole 210 of the case 20.

The first cylindrical drum 12 is mounted on the holder 11 and is rotated by the drive shaft 30. In detail, the drive shaft 30 has a non-circular cross section, and a hole having a non-circular cross section corresponding to the cross section of the drive shaft is formed in the first cylindrical drum 12 so that the drive shaft 30 is coupled thereto. In addition, the first cylindrical drum 12 is hollow to form an inner hole 121. Guide protrusions 122 along the longitudinal direction of the case 20 protrude from the inner hole 121.

Meanwhile, the guider 13 has a guide hole 131 having a diameter substantially the same as that of the inner hole 121 of the first cylindrical drum 12. A thread 132 is formed on the inner circumferential surface of the guide hole 131. The guider 13 is mounted to the holder 11 such that the guide hole 131 and the inner hole 121 of the first cylindrical drum 12 are located concentrically. At this time, the edge surface of the guider 13 is supported by the inner surface of the holder 11, the guider 13 is not rotated.

Meanwhile, the winding drum 14 passes through the guide hole 131 and is mounted in the inner hole 121 of the first cylindrical drum 12. A thread 141 is formed on the outer circumferential surface of the winding drum 14 to be coupled to the thread 132 of the guide hole 131, and the guide protrusion 122 of the first cylindrical drum 12 is formed in the longitudinal direction of the outer circumferential surface. Guide grooves 142 corresponding to the formed. Accordingly, when the first cylindrical drum 12 is rotated, the winding drum 14 is rotated together with the first cylindrical drum 12 by the guide protrusion 122 and the guide groove 142. At the same time it is screwed into the guide hole 131 is moved in the longitudinal direction of the case (20). At this time, the winding drum 14 is moved in the direction of insertion into the first cylindrical drum 12 or is separated from the outside of the first cylindrical drum 12 according to the rotation direction of the first cylindrical drum 12. Is moved to.

In FIG. 4, the center string Lc is wound around the thread 141 formed on the outer circumferential surface of the winding drum 14 after passing through the access hole 210 of the case 20. The center string Lc is wound around the outer circumferential surface of the winding drum 14 which is rotated together with the first cylindrical drum 12 according to the rotation of the drive shaft 30, thereby pulling up the lowermost shielding blade 50A. When the drive shaft 30 is rotated in the opposite direction, the center cord Lc is released from the winding drum 14 and lowers the lowermost shielding blade 50A.

Referring again to FIGS. 2 and 4, the auxiliary line Lp is connected to the first cylindrical drum 12. In this case, the elastic spring 15 is coupled to the outer circumferential surface of the first cylindrical drum 12, and the auxiliary line Lp may be coupled to the elastic spring 15. As the elastic spring 15 is rotated in the same direction along with the rotation of the first cylindrical drum 12, the obstruction blade 50 is tilted. As the locking ring 151 protruding from one end of the elastic spring 15 is caught by the inner wall of the holder 11, the rotation angle of the elastic spring 15 is limited. At this time, the first cylindrical drum 12 is slipped with respect to the elastic spring 15 and is capable of continuous rotation.

On the other hand, the selection elevating section 2, the second cylindrical drum 21, the case 20 is coupled to the other end of the first cylindrical drum 12, the thread 212 protrudes only in the central portion of the circumferential surface The thread is movable in the longitudinal direction of the case 20 while being limited to the rotation, and is inserted into the second cylindrical drum 21 and coupled to the thread 212 of the second cylindrical drum 21 on the inner circumferential surface thereof. 221 is formed and coupled to the slider 22 having the coupling hole 221 and the part of the shielding wings (50a, 50b), passing through the entrance hole 210, the direction of travel is switched and the slider 22 It includes a setting line (Ls) fixed to).

One end of the second cylindrical drum 21 is coupled to the other end of the first cylindrical drum 12, and as described above, a cylindrical portion 211 having a thread 212 protruding is formed. That is, the rotation wheel 10A described above may be formed by combining the first cylindrical drum 12 and the second cylindrical drum 21. Furthermore, the first cylindrical drum 12 and the second cylindrical drum 21 may be formed of one member. In this case, since the coupling relationship between the slider 22 and the setting line Ls is the same as described above, a redundant description is omitted.

Referring to FIG. 5, the outer peripheral surface of the rotary jaw 10A (exactly, the cylindrical portion 211 of the second cylindrical drum 21) has a moving section A2 having a thread 212 formed at the center thereof, and the thread ( The slider 22 separated from 212 may be divided into stagnant sections A1 and A3.

Since both ends of the slider 22 are supported by the inner wall of the case 20, even if the slider 22 stays in the stagnant sections A1 and A2, the center of the coupling hole 221 of the slider 22 and the cylindrical portion ( The center of 211 is coincident. Therefore, as shown in Figs. 6 to 8, when the rotary wheel 10A is rotated, the slider 22 moves from the stagnant section A3 on the right side to the stagnant section A1 on the left side through the moving section A2. On the contrary, it is possible to move from the congestion section A1 on the left side to the congestion section A3 on the right side.

In addition, as shown in FIGS. 2 to 3 and 6, further includes an elastic portion 23 for elastically pushing the slider 22 remaining in the stagnation sections A1 and A2 toward the thread 212. can do. The elastic part 23 may be a spring 213 or an elastic rubber block. In FIG. 6, a spring 231 whose one end is supported by a nut N is used for the stagnation section A1 on the left side, and an elastic rubber ring 232 facing the step is used for the stagnation section A3 on the right side. The elastic part 23 pushes the slider 22 in the stagnant sections A1 and A3 toward the thread 212 of the cylindrical section 211, thereby being separated from the moving section A2 of the cylindrical section 211. Slider 22 again facilitates engagement with thread 212 of cylindrical portion 211. At this time, since the slider 22 is pulled toward the moving section A2 by the tension of the setting line Ls, the elastic part (spring) provided in the stagnant section A1 on the left side in FIG. 6 may be omitted.

Hereinafter, the operation of the blind driving device and the blind according to the present invention will be described with reference to FIGS. 1 to 11.

1, the clockwise rotation (arrow direction) of the drive shaft 30 is set to the forward rotation, and the counterclockwise rotation is set to the reverse rotation.

10A illustrates a state in which the blind 100 is fully developed. At this time, the shielding wings 50 are separated from each other by a predetermined interval, each shielding blade 50 is in a state of being supported by the auxiliary line. On the other hand, the setting line (Ls) is fixed to the second screening blade (50a) and the fourth screening blade (50b) down on the basis of the case (20). In the state of the selective elevating portion 2 in which the shielding blades 50 are spaced apart at regular intervals, the slider 22 is positioned at the stagnant section A3 to the right as shown in FIG. 8. At this time, the elastic rubber ring 232 is in a state of pressing the slider 22 toward the screw thread 212 of the cylindrical portion 211.

Then, when the user rotates the handle bar 420, the drive shaft 30 is rotated in the reverse direction through the gear box 410. Due to the reverse rotation of the drive shaft 30, the rotation wheel 10A (first and second cylindrical drums) is also rotated in the reverse direction. Referring to FIG. 4, the winding drum 14 is rotated with respect to the first cylindrical drum 12 in the main lifting unit 1, and is moved in a direction away from the first cylindrical drum 12. At the same time, the center row Lc is wound around the winding drum 14, and thus the lowermost shielding blade 50A connected to the center row Lc is raised.

In addition, when the reverse rotation of the drive shaft 30 is started, the second cylindrical drum 21 is rotated in the reverse direction together. As shown in FIG. 7, the thread 212 of the cylindrical portion 211 is engaged with the thread 221 formed in the engaging hole 221 of the slider 22, whereby the slider 22 moves in a moving section A2. ) Is moved to the stagnation section A1 on the left side by further rotation of the second cylindrical drum 21. At the same time, the setting line Ls whose end is fixed to the slider 22 is pulled out. The pulled setting line Ls raises the second blind blade 50a and the fourth blind blade 50b, as shown in FIG.

In FIG. 6, the slider 22 moved to the left side of the moving section A2 is eventually moved to the left side stagnation section A1, and deviates from the thread 212 of the cylindrical portion 211. At the same time the slider 22 is pushed towards the thread 212 by the spring 231.

After the drive shaft 30 is rotated in the reverse direction since the slider 22 is not coupled to the threaded portion 212 of the cylindrical portion 211, it will remain in place.

On the other hand, if the drive shaft 30 continues to rotate in the reverse direction by the main lifting unit 1 all the shield blades 50 are moved to the upper, it is possible to open the window.

When the user rotates the handle bar 420 in the opposite direction while the blind 100 is completely open, and the drive shaft 30 is rotated in the forward direction, the center cord wound on the winding drum 14 in the main lifting unit 1 is rotated. (Lc) is released, and accordingly the blind 100 begins to sag while being supported by the auxiliary line (Lp) in turn from the shielding blade located at the top.

At the beginning of the forward rotation of the drive shaft 30, as shown in FIG. 6, the slider 22 that stayed in the stagnation section A1 on the left side is again threaded by the cylindrical portion 211 by the forward rotation of the cylindrical portion 211. 212 is combined. Thereafter, as shown in FIG. 7, the transfer section A2 is transferred, and as shown in FIG. At this time, the elastic rubber ring 232 is elastically deformed to press the slider 22 toward the threaded portion 212 of the cylindrical portion 211. In addition, the setting line Ls fixed to the slider 22 is returned to its original position by the movement of the slider 22.

Thereafter, while the forward rotation of the drive shaft 30 is further progressed, the slider 22 is not engaged with the thread 212 of the cylindrical portion 211, and remains in the stagnation section A3 on the right side.

When the forward rotation of the drive shaft continues, each of the shield wings 50 is supported by the auxiliary line (Lp), as shown in Figure 10 (a), each of the shield blades are maintained at the same interval and the blinds are deployed.

Referring back to Figures 6 to 7, the selective lifting unit 2 according to the present invention is to operate the slider only for a certain number of revolutions when the rotation direction of the drive shaft 30 is switched. Therefore, the handle bar 420 may be rotated in the reverse direction in the middle of developing the blind 100 to raise a part of the shielded blade 50 that is deployed. Subsequently, the handle bar 420 may be rotated again in the forward direction to lower some of the shielded wings.

The operating length of the setting line Ls is the length between the stagnant section A1 on the left side of the cylindrical portion 211 and the right stagnant section A3 on which the slider 22 is moved. This working length may be equal to or less than the spacing between each horizontal line (Lp1) provided in the auxiliary line (Lp). In addition, as the operation length is formed longer than the spacing interval between the horizontal lines (Lp1) may be configured to raise the shield blades raised by the setting line to support the other shield blades located thereon.

In addition, as the setting line Ls is configured to selectively support only some of the shielding vanes, as shown in FIG. 11, only the shielding vanes 50c positioned in the middle of the blind 100 may be selectively lifted. have.

Through the blind driving device as described above, the lifting and lowering of some blocking members according to the user's selection can be adjusted.

100: blind
10: drive device
10A: Rotor A2: Moving section A1, A3: Static section P: Pulley
1: Main lift
11: holder
12: first cylindrical drum 121: inner hole 122: guide protrusion
13: guider 131: guide hole 132: thread
14: winding drum 141: thread 142: guide groove
15: elastic spring 151: hook
2: selective lift
21: first cylindrical drum 211: cylindrical portion 212: thread
22: slider 221: coupling hole 222: thread
23: elastic portion 231: spring 232: rubber ring N: nut
20: case 210: entrance hall
30: drive shaft
40: handle portion 410: gear box 420: string member
50,50A, 50a, 50b, 50c: Screening wing 51: Hole
Lc: Center Joule
Lp: auxiliary line Lp1: horizontal line
Ls: Setting line Lp2: Horizontal line

Claims (8)

In the drive device of the blind which is mounted on the case, coupled to the drive shaft rotated by the user's operation, by lifting or unwinding the center cord connected to the plurality of shielding wings provided in the lower portion of the case,
The drive device
A rotating body connected to the drive shaft and rotatable, the screw protruding from a part of an outer circumferential surface thereof;
A slider coupled to the thread and slidable in the longitudinal direction of the case; And
And a setting line fixed to a part of the shielding vanes, one end of which is fixed to the slider after the direction is changed in the case. In claim 1,
The rotating body
And a stagnant section in which a slider separated from the screw stays at both ends of the threaded moving section. In claim 2,
And a resilient portion for elastically pushing the slider staying in the stagnation section toward the screw thread. In claim 1,
The setting line
A blind drive device located on a vertical line such as the center line. In the drive device of the blind which is mounted to the case, coupled to the drive shaft rotated by the user's operation, and lifting the plurality of shielding wings provided in the lower portion of the case,
The drive device
The main lift unit for lifting and lowering the shield blade at the bottom,
A blind driving device including a selective lifting unit for selectively raising and lowering some of the shielding wings. The method of claim 5,
The main lift portion
Cradle is installed in accordance with the entrance hole formed in the lower portion of the case;
A first cylindrical drum mounted to the holder, the first cylindrical drum being rotated by the drive shaft and having a guide protrusion protruding in the longitudinal direction of the case in the hollow inner hole;
A guider positioned at one end of the first cylindrical drum and corresponding to an inner hole of the first cylindrical drum, the guider having a guide hole having a thread formed on an inner circumferential surface thereof;
An outer circumferential surface is formed with a screw thread coupled to the guide hole and a guide groove into which the guide protrusion is inserted, the winding drum being rotated together with the first cylindrical drum and moving in the inner hole in the longitudinal direction of the case;
A center line fixed to the shielding blade at the lowermost end and wound around the thread of the first cylindrical drum through the access hole; And
And an auxiliary cord mounted to the first cylindrical drum and supporting each of the shielding vanes. The method of claim 5,
The selective elevating unit
A second cylindrical drum coupled to the other end of the first cylindrical drum and protruding a screw thread in a central portion of the circumferential surface;
A slider having a coupling hole formed with a screw thread coupled to the thread of the second cylindrical drum, the slider being movable in the longitudinal direction of the case while the rotation is limited in contact with the case; And
And a setting line which is coupled to the part of the shielding vanes, passes through the entrance hole, and whose direction of travel is changed and fixed to the slider. case,
The blind driving device according to claim 1, which is mounted inside the case,
A drive shaft connected to the blind drive device;
A handle for transmitting a rotational force provided by the user to the drive shaft, and
And a plurality of shielding vanes positioned at the bottom of the case, the plurality of shielding vanes being collected or deployed on the strings that are pulled or released by the blind drive.

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