KR101681553B1

KR101681553B1 - Double blind curtain

Info

Publication number: KR101681553B1
Application number: KR1020150075668A
Authority: KR
Inventors: 전춘구
Original assignee: 전춘구
Priority date: 2014-12-17
Filing date: 2015-05-29
Publication date: 2016-12-01
Also published as: KR20160073898A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind curtain which is installed on a window or a wall surface of an interior of a room to obtain an effect of intercepting sight,
A side plate 120 provided on both sides of the bottom surface of the upper plate 110 and having two apertures 150 formed therein and a pair of side plates 120 provided inside the bottom surface of the upper plate 110, A body frame (100) comprising a partition plate (130) in which a shaft hole (150) is perforated;
The first and second driven gears 214 and 215 are rotatably provided on the bottom surface of the body frame 100 and are rotatable together with a drive sprocket 213 that is rotated by a drive chain 212. A main driving shaft 211 provided with a driving unit 210 constituted by an idle gear 216 which rotates together with the main shaft 211 and a main winding shaft 217 formed on the other side, (200) having a driven shaft (221) having a rotary transmission portion (220) for receiving a rotational force from a drive shaft (210) on one side to be movable left and right and a driven reed rod (229) Wow;
A sliding operation portion 300 provided at one side of the rotational transmission portion 220 of the driven shaft 221 to control the rotational direction of the driven shaft 221 to be changed by transmitting the rotational transmission portion 220 to the left and right;
A curtain paper 410 having one end wound around the main winding wire 217 and the other end wound around the driven winder rod 229 and connected to one or more various pattern sheets; And a curtain part 400 having a weight bar 420 at the center of the curtain part 410,
In the present invention, when two ends of a curtain paper are wound in a roll form on two rotary shafts and then two rotary shafts are rotated to expand or roll up the curtain paper, the two rotary shafts can be freely adjusted So that the curtain paper wound around the rotary shaft can be freely adjusted.

Description

Double blind curtain < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind curtain which is installed on a window or a wall of a room to obtain an effect of intercepting eyes from the outside, The two rotary shafts can be freely adjusted so that the two rotary shafts face each other and can be freely rotated when the curtain paper is expanded or rolled up by rotating the two rotary shafts after the two ends of the paper are wound in roll form on the two rotary shafts, The present invention relates to a double blind curtain which can freely adjust a curtain which is wound around a curtain.

Generally, blind curtains are used to block outdoor sunlight, to protect the privacy of the room, and to make the aesthetics of the room look better. Such blind curtains can be vertical blinds, horizontal blinds, or superposed blinds, Its form is also manifold.

The superposition type blind has a structure in which a plurality of blind blades are connected by a single row so that the operation portion cooperating with the rotation axis is wound or loosened so that the individual blind blades are uniformly raised or lowered. It is also possible to adjust the illuminance by adjusting.

However, such a configuration has a problem in that the individual blind wing is twisted or tangled while moving uniformly, and when the situation is encountered, the entire blind should be disassembled and replaced or repaired.

On the other hand, a roll-shaped blind which is rolled up or rolled by the adjustment of the operating part by winding a single screen on a winding tube is easier to handle and manage than a blind with a superimposed blind, and a beautiful indoor atmosphere can be produced through screen printing, .

In the conventional structure of the roll-shaped blind, a winding tube having a screen on its outer circumference and a knob on its end is provided on the upper side of the opening, and a clutch and a rotating shaft are disposed inside the winding tube, And an operating line for interlocking is provided at one end of the winding pipe.

The roll blind having the above configuration is wound on a rotating shaft and is divided into two lines so that the screen is wound or unfolded by selective pulling of the operating line falling downward.

However, such a roll blind has disadvantages in that it can not maintain its shape even in the case of a downward wind force which is opened when an opening of a window or the like is opened, is easily disturbed, and the screen is continuously damaged by the wind.

In addition, a conventional roll blind has a wind-up portion at an upper portion thereof, and the screen is downwardly extended. Thus, the roll blind can not open only a predetermined height and area required by a consumer in the entire opening area, In addition, generally, a screen made of a thin fabric has a problem in that daylight can be transmitted when the amount of solar radiation is large because the lighting control can not be controlled in a fluid manner.

In order to solve the problem of the above-described roll blind curtain, a double blind curtain having a double curtain has been developed and used.

These double blind curtains are made by double curtain paper to satisfy consumers' desire. Double curtain curtain makes it possible to control mining more flexibly and to satisfy user's desire. We were able to provide blind curtains.

However, the above-mentioned double blind curtain can meet the consumer's desire to some extent in a practical aspect, but there is a problem that the curtain can not satisfy the needs of various consumers in the interior interior aspect of the curtain, Since the curtain paper made of a single pattern is used, there is a problem that the curtain must be always seen unless the entire blind curtain is replaced. Thus, there is a problem There have been considerable problems in obtaining the effect.

Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a curtain model which is made by connecting two or more curtain papers in the height direction, as well as maximizing practicality by innovating functional limitations of existing technologies with innovative and efficient means It can be installed on a dual roll with two rotating shafts so that the selected curtain paper can be spread by motorized or manual method so that a wide variety of curtain paper can be applied to a single product. In addition, when installed on a curved surface, The present invention aims at providing a double blind curtain which can be installed on the apparatus so as to be able to be installed so that it can be easily installed without restriction.

According to an aspect of the present invention,

A side plate 120 disposed on both sides of the bottom surface of the upper plate 110 and having a plurality of holes 150 formed therein; A body frame (100) comprising at least one partition plate (130) having a shaft hole (150) formed therein;

The first and second driven gears 214 and 215 are rotatably provided on the bottom surface of the body frame 100 and are rotatable together with a drive sprocket 213 that is rotated by a drive chain 212. A main driving shaft 211 provided with a driving unit 210 constituted by an idle gear 216 which rotates together with the main shaft 211 and a main winding shaft 217 formed on the other side, (200) having a driven shaft (221) having a rotary transmission portion (220) for receiving a rotational force from a drive shaft (210) on one side to be movable left and right and a driven reed rod (229) Wow;

A sliding operation portion 300 provided at one side of the rotational transmission portion 220 of the driven shaft 221 to control the rotational direction of the driven shaft 221 to be changed by transmitting the rotational transmission portion 220 to the left and right;

A curtain paper 410 having one end wound around the main winding wire 217 and the other end wound around the driven winder 229 and having a plurality of patterns connected to each other; And a curtain part 400 having a weight bar 420 at the center of the curtain part 400.

According to the present invention, it is possible to provide a double blind curtain in which a variety of indoor ambience can be produced when a curtain of various photographs is printed, and curtain fabrics having different patterns can be used as a curtain, , It is possible to select according to the amount of sunlight, and it is possible to select top curtain, bottom curtain, night curtain and night curtain, and if the message is written on curtain paper, The present invention can be expected to produce various types of curtains.

FIG. 1 is a perspective view showing the entire assembly of the present invention,
2 is an exploded perspective view of the main part of the present invention,
3 is a perspective view showing the rotary transmission portion and the sliding operation portion according to the present invention,
Fig. 4 is a plan view showing a state in which the rotational transmission portion is located at a neutral position and the slave axis is not rotated in the present invention,
5 is a plan view showing a state in which the driven shaft is rotated in the same direction as the main coaxial shaft in the state where the rotational transmission portion moves to the right in the present invention,
6 is a plan view showing a state in which the driven shaft is rotated in a direction opposite to the main shaft in a state in which the rotational transmission portion is moved to the left in the present invention,
7 is an exploded perspective view showing still another embodiment of the rotary transmission portion according to the present invention,
8 and 9 are plan views showing still another embodiment of the rotary transmission portion according to the present invention,
FIG. 10 is a perspective view showing a joint part according to the present invention,
11 is a front view showing still another embodiment of the present invention,
Fig. 12 is a view showing the main part of Fig. 11,
13 and 14 are plan views showing still another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the accompanying drawings, the present invention includes a winding operation part 300 for changing the rotation direction of the winding part 200, and a winding part 200 having two axes formed inside the body frame 100, And a curtain part (400) wound on the winding part (200).

The body frame 100 includes a top plate 110 and a side plate 120. The side plates 120 are disposed on both sides of the bottom surface of the top plate 110 and have a plurality of pores 150 formed therein. And a partition plate 130 provided inside the bottom surface and having a plurality of pores 150 formed therein.

As shown in the accompanying drawings, the winding unit 200 provided inside the body frame 100 includes a main coaxial shaft 211 having a driving unit 210 and a rotary transmission unit 220 receiving a driving force of the driving unit 210 And a driven shaft 221 having a plurality of pulleys (not shown) is rotatably coupled to the shaft hole 150 of the body frame 100.

The drive unit 210 includes a drive sprocket 213 rotated by a manually operated drive chain 212, a first spur gear 214 disposed on one side of the drive sprocket 213, A second main gear 215 provided at one side of the main gear 214 and an idle gear 216 meshing with the second main gear 215 and rotating together with the second main gear 215. The user grips the drive chain 212 The first and second driven gears 214 and 215 and the idle gear 216 rotate together when the main spindle 211 rotates.

The rotational transmission portion 220 of the driven shaft 221 includes a first driven gear 222 which is engaged with the first driven gear 214 of the driven portion 210 of the main driving shaft 211, A second driven gear 223 engaged with the idle gear 216 of the drive unit 210 and a connection pipe 224 connecting the first and second driven gears 222 and 223 to each other, And a sliding key 228 provided on one side of the driven shaft 221 so that the driven gears 222 and 223 and the coupling pipe 224 are coupled to the driven shaft 221 in such a manner that the driven gears 222 and 223 and the coupling pipe 224 can be shifted left and right, The rotation direction of the driven shaft 221 receiving the rotational force of the main driving shaft 211 is changed according to the operation of the driving shaft 220.

The sliding operation unit 300 for slidingly transferring the rotary transmission unit 220 to the left and right is provided on a side surface of the partition plate 130 of the body frame 100 as shown in the accompanying drawings, And an operating chain 321 is provided on one side of the fixed plate 310. The operating chain 321 is rotatably inserted into the cutout groove 311 of the fixing plate 310. A spring 322 and a spring An operating lever 320 in which a ball case 324 for supporting a ball 323 receiving tension of the ball case 322 is formed and a ball engaging groove 331 in which the ball case 324 is inserted are provided on one side And the other end is constituted by a transfer hook 330 connected to a coupling pipe 224 provided in the rotational transmission portion 220 of the driven shaft 221,

When the user operates the operating chain 321 of the operating lever 320 and pulls the operating lever 320 to move the connecting pipe 224 connected to the feeding hook 330 to the left and right, (220) slides to the left and right.

Here, a ball fastening hole 323 for receiving the tension of the spring 322 is provided on the other side of the operation lever 320, so that the rotation transmission portion 220 is more elastically moved, .

The curtain part 400 according to the present invention includes a curtain paper 410 wound around the main winding bobbin 217 at one end and wound around the driven winder rod 229 at the other end, And a weight bar 420 is provided at the center of the curtain paper 410 wound on both ends of the curtain paper 410. Since the load of the curtain paper 410 is directed downward by the weight bar 420, It is possible to maintain a constant shape.

The curtain paper 410 of the present invention is characterized in that at least one curtain paper 410 having various patterns is connected to the curtain paper 410. For example, It is possible to select the curtain paper 410 having a different pattern according to the amount of sunlight when the curtain paper 410 having a different pattern is configured as a mesh-striped paper-mesh paper-translucent paper-mesh paper- The curtain paper 410 can be selected and the curtain paper 410 can be used for learning and publicity through automatic circulation operation when a message is recorded on the curtain paper 410. [ .

It is a matter of course that one curtain paper 410 is formed to have a size corresponding to a height to be installed in a room, and one curtain paper 410 pattern is formed of one curtain product.

Hereinafter, a process for unfolding and using the various types of curtain papers 410 as described above will be described.

The ends of the curtain paper 410 are fixed to the main winding wire rod 217 and the driven winder rod 229 and then the curtain paper 410 is wound on both sides of the curtain paper 410, The drive transmission chain 212 of the drive unit 210 is pulled so that only the main shaft 211 is rotated and the driven shaft 221 is rotated. Is kept in a non-rotating state.

In this case, the curtain paper 410 wound around the main winding coils 217 is unfolded downward by the operation of rotating only the main coaxial shaft 211, and when the driving chain 212 is pulled in the opposite direction, the main coaxial shaft 211 rotates reversely The curtain paper 410 is wound up.

When the curtain paper 410 wound around the main winding bobbin 217 is used together with the curtain paper 410 wound around the follower winding rod 229 as described above, the operation chain 321 of the sliding operation portion 300 The operating lever 320 is rotated around the fixed plate 310 so that the rotary transmission portion 220 slides on the sliding key 228 so that the driven shaft 221 can rotate.

5 to 6, the second driven gear 223 and the idle gear 216 of the main shaft 211 are engaged with each other when the rotary transmission portion 220 is moved to the right, The first driven gear 222 and the main coaxial shaft 211 rotate together in the same direction as the main coaxial line 211 or in the direction of the & The driven shafts 221 rotate together in the direction opposite to the main shaft 211, i.e., in the direction of the "opposite projections ".

As described above, since the main coaxial shaft 211 and the driven shaft 221 can be made to "protrude" and "protrude" along with each other by a simple operation, the curtain paper 410 can be freely adjusted in a desired pattern. When the coaxial shaft 211 and the driven shaft 221 are "opposed ", the curtain papers 410 wound on both sides are simultaneously stretched and wound up at the same time. In this case, only one pattern of the curtain papers 410 is used And the user changes the pattern of the curtain paper 410 in such a manner that the main coaxial shaft 211 and the driven shaft 221 are "turned along" when the user wants to change the pattern of the curtain paper 410 The curtain paper 410 wrapped around the main coaxial shaft 211 and the driven shaft 221 is transferred to either side and the pattern of the curtain paper 410 is naturally changed so that the user can use the curtain paper 410 of a desired pattern .

7 to 8 show another embodiment of the rotational transmission portion 220 that transmits rotational force to the driven shaft 221. The rotational transmission portion 220 includes a driving portion 210 for the main shaft 211, A first driven gear 222 having a driven clutch 226 provided on one side thereof and meshing with the idle gear 216 of the main driving shaft 211 driving unit 210, A second driven gear 223 having a driven clutch 226 at one side thereof and a second driven gear 223 coupled to a partition plate 130 of the body frame 100. The first and second driven gears 222, And a connection clutch 227 engaged with a driven clutch 226 provided on one side of the first and second driven gears 222 and 223 is provided on both sides And a connection pipe (224) formed on the connection pipe (224) so that the connection pipe (224) can be shifted to the left and right on the driven shaft (221) Characterized in that consists of 228 operating procedure is as follows.

The first driven gear 214 and the idle gear 216 of the main coaxial shaft 211 and the first driven gear 222 and the second driven gear 223 of the driven shaft 221, The first and second driven gears 222 and 223 of the driven shaft 221 are coupled to the coaxial shaft 221 in a state where the first and second driven gears 222 and 223 are coupled to the coaxial shaft 225, It will remain idle.

This is because the first and second driven gears 222 and 223 are fastened to the co-rotating shaft 225 and the co-rotating shaft 225 is separately fastened to the partitioning plate 130 outside the driven shaft 221, So that the first and second driven gears 222 and 223 merely rotate on the outside of the coaxial shaft 225.

When the first and second driven gears 222 and 223 are idling and the rotational force is transmitted to the driven shaft 221, the sliding operation unit 300 is operated to transfer the rotational transmission unit 220, And the driven clutch 226 formed on the first and second driven gears 222 and 223 are coupled to each other so that when the main shaft 211 rotates, the first and second driven gears 222 and 222 And the connecting pipe 224 is rotated so that the driven pipe 221 on which the connecting pipe 224 is fixed is rotated.

9 is a view showing another embodiment of the rotation transmission portion 220. The rotation transmission portion 220 includes a driving portion 210 for driving the main shaft 211, And the first and second pulleys 240 and 241 rotate together with the sprocket 213. The rotational transmission portion 220 of the driven shaft 221 is connected to the first pulley 240 via the belt 260 A first driven pulley 250 having a driven clutch 226 at one side thereof and a driven clutch 226 connected to the second driven pulley 241 via a belt 260, The first and second driven pulleys 251 and 251 are fastened to the partition plate 130 of the body frame 100 so as to allow the first and second driven pulleys 250 and 251 to idle on the driven shaft 221, And a connecting clutch 227 engaged with a driven clutch 226 provided on one side of the first and second driven pulleys 250 and 251, And that consists of a tube 224, and the sliding key 228 to the connector 224 such that the left and right feed possibly combined at the driven shaft 221 is characterized.

The rotation transmission portion 220 transmits rotational force to the belt 260 as shown in the accompanying drawings and changes the direction of rotation of the driven shaft 221 according to the shape in which the belt 260 is wound Can be confirmed.

10 shows one embodiment of the main coaxial shaft 211 and the driven shaft 221 according to the present invention. As shown in the accompanying drawings, one end of the main coaxial shaft 211 and one end of the driven shaft 221 A plurality of main coaxial shafts 211 and a plurality of driven shafts 221 are connected to each other so as to be able to bend,

The shaft can be easily installed in a room made of a curved surface by means of the bendable shaft as described above, and a plurality of shafts can be connected to each other, so that the present invention can be easily installed even in a wider space.

11 to 12 illustrate embodiments in which the power means is implemented by a motor rather than a manual operation. As shown in the accompanying drawings, the body frame 100, the winding unit 200, and the curtain unit 400, And a control panel unit 500,

The winding unit 200 is provided below the body frame 100 and rotates by a motor 430 so that the main winding shaft 211 and the follower winding rods 229 And a driven shaft 221,

The curtain part 400 includes a curtain paper 410 having one end wound around the main winding winder 217 and the other end wound around the driven winder 229, A boundary mark 411 provided on a side surface of a portion where each curtain paper 410 is connected to indicate a boundary of the curtain paper 410, a sensor 412 sensing the boundary mark 411, And a weight bar 420 provided at the center of the curtain paper 410 wound around the curtain paper 410,

The control panel unit 500 includes a microcomputer and receives a signal from the sensor 412 that senses the movement of the boundary mark 411 or receives an originating signal from the remote controller 510 and outputs the signal to the winding unit 200 By controlling the rotation direction and rotation time of each motor 430,

The user can operate the motor 430 by operating the simple remote controller 510 to unfold or roll up the curtain paper 410 and automatically drive the motor 430 according to the settings pre- The curtain paper 410 of the desired pattern can be opened at a desired time.

It is to be noted that the motor 430 can be driven by forward rotation and reverse rotation so that the main winding bobbin 217 and the follower winding bobbin 229 can easily "protrude" and "protrude" It is needless to say that the pattern 410 is composed of various patterns and is partitioned by the boundary markers 411.

In the driving method operated by the motor 430 as described above, the sensor 412 is provided in the boundary mark 411 and when the curtain sheet 410 comes to the desired position, the sensor 412 of the boundary mark 411 So that the user can preliminarily use the desired curtain paper 410 in a convenient and practical manner.

The connecting coupling 440 is provided at one end of the main coaxial shaft 211 and the driven shaft 221 to transmit and interrupt the rotational force. This is because only the motor 430 installed at one side of the main coaxial shaft 211 and the driven shaft 221, To be installed.

12, the coupling coupling 440 includes a shaft gear 441 fastened to the main shaft 211 and an end of the driven shaft 221, and a coupling gear 440 that is slid to the outside of the shaft gear 441 A coupling boss 442 and a power interrupting lever 443 provided outside the coupling boss 442,

When the coupling boss 442 is disengaged from the outer side of the shaft gear 441 by using the principle that the gear formed outside the shaft gear 441 and the gear formed inside the coupling boss 442 are engaged with each other, And when the coupling boss 442 is moved to the inside of the shaft gear 441, a rotational force is transmitted to rotate the coupling boss 442 together.

13 is a plan view illustrating another embodiment of the present invention. As shown in the accompanying drawings, the driving sprocket 213 of the driving unit 210 is coupled to the coupling pipe 224 of the rotational transmission portion 220 When the drive sprocket 213 is rotated by the drive chain 212, the driven shaft 221 can rotate together.

The drive sprocket 213 is moved left and right using the drive chain 212 so that the coupling pipe 224 can be slidably moved so that the rotational force is transmitted from the slave shaft 221 to the main shaft 211. [ In addition,

14, the connecting pipe 224 is provided on the outer sides of the first and second driven gears 222 and 223, respectively, and the connection pipe 224 is provided on one side of the first driven gear 222, The driving sprocket 213 of the driving unit 210 is coupled to the tube 224 so that the driven sprocket 213 is rotated by the driving chain 212 so that the driven shaft 221 can rotate together, The drive sprocket 213 is connected to the drive chain 212 by a drive lever 320 having transfer hooks 330 formed on both sides thereof to be coupled to the two connection pipes 224, The connecting pipe 224 can be slidably moved so that the rotational force is transmitted from the driven shaft 221 to the main shaft 211. [

As a result, the sliding operation unit 300 can be minimized, and a separate operation chain 321 is not necessary. As a result, the sliding operation unit 300 can be more practical, simple, and easy to produce, Which can provide a double blind curtain.

100; Body frame 110; Top plate 120; Side plate
130; Partition plate 150; Bayesian 200; Winder
210; A driving unit 211; Main coaxial 212; Drive chain
213; Drive sprocket 214; A first spur gear 215; The second main gear
216; Idle gear 217; A main winding rod 220; [0060]
221; A driven shaft 222; A first driven gear 223; Second driven gear
224; Connector 225; A ball rotating shaft 226; Driven clutch
227; A connection clutch 228; A sliding key 229; Follower rod
230; Joint joint 240; A first main pulley 241; Second driven pulley
250; A first driven pulley 251; A second driven pulley 260; belt
300; A sliding operation portion 310; A fixing plate 311; Incision groove
320; Operation lever 321; Operating chain 322; spring
323; Ball 324; Ball case 330; Feed hook
331; Ball catching groove 400; Curtain portion 410; Curtain paper
411; Boundary mark 412; Sensor 420; Weight bar
430; A motor 440; Connection coupling 441; Axis gear
442; Coupling boss 443; A power interrupter lever 500; The control panel section
510; remote

Claims

A side plate 120 disposed on both sides of the bottom surface of the upper plate 110 and having a plurality of holes 150 formed therein; A body frame (100) comprising at least one partition plate (130) having a shaft hole (150) formed therein;
The first and second driven gears 214 and 215 are rotatably provided on the bottom surface of the body frame 100 and are rotatable together with a drive sprocket 213 that is rotated by a drive chain 212. A main driving shaft 211 provided with a driving unit 210 constituted by an idle gear 216 which rotates together with the main shaft 211 and a main winding shaft 217 formed on the other side, (200) having a driven shaft (221) having a rotary transmission portion (220) for receiving a rotational force from a drive shaft (210) on one side to be movable left and right and a driven reed rod (229) Wow;
A sliding operation portion 300 provided at one side of the rotational transmission portion 220 of the driven shaft 221 to control the rotational direction of the driven shaft 221 to be changed by transmitting the rotational transmission portion 220 to the left and right;
A curtain paper 410 having one end wound around the main winding wire 217 and the other end wound around the driven winder rod 229 and connected to one or more various pattern sheets; And a curtain part (400) having a weight bar (420) at the center of the curtain part (410).

The method according to claim 1,
The rotational transmission portion 220 of the driven shaft 221 includes a first driven gear 222 meshing with the first driven gear 214 of the driving portion 210 of the main driving shaft 211;
A second driven gear 223 engaged with the idle gear 216 of the main coaxial drive 211;
A coupling pipe 224 connecting the first and second driven gears 222 and 223 to each other;
And a sliding key 228 provided on one side of the driven shaft 221 so that the first and second driven gears 222 and 223 and the coupling pipe 224 are coupled to the driven shaft 221 so as to be shifted left and right,
And the rotation direction of the driven shaft (221) receiving the rotational force of the main driving shaft (211) is changed in accordance with the operation of the rotational transmission portion (220).

3. The method according to claim 1 or 2,
The sliding operation unit 300 includes a fixing plate 310 provided on a side surface of the partition plate 130 of the body frame 100 and having an incision groove 311 formed therein;
An operation chain 321 is provided on one side of the fixed plate 310 so as to be rotatably inserted into the cutout groove 311 of the fixing plate 310 and a ball 323 and a ball 323, An operation lever 320 having a ball case 324 formed thereon;
The other side of which is connected to the connection pipe 224 provided in the rotational transmission portion 220 of the driven shaft 221. The ball coupling groove 331 is formed in the ball coupling groove 331, And a hook (330).

The method according to claim 1,
The rotary transmission portion 220 of the driven shaft 221 is engaged with the first driven gear 214 of the driving portion 210 of the main coaxial shaft 211 and is coupled to the first driven gear 214 having the driven clutch 226 at one side thereof. A gear 222;
A second driven gear 223 coupled to the idle gear 216 of the main coaxial drive 211 and having a driven clutch 226 at one side thereof;
A biaxial shaft 225 coupled to the partition plate 130 of the body frame 100 to allow the first and second driven gears 222 and 223 to be inserted and idle on the driven shaft 221;
A coupling pipe 224 formed at both sides of the coupling clutch 227 engaged with the driven clutch 226 provided at one side of the first and second driven gears 222 and 223;
And a sliding key 228 for allowing the coupling pipe 224 to be coupled to the left and right of the driven shaft 221 so as to be shifted to the left and right. And the rotation direction of the receiving slave shaft (221) is changed.

The method according to claim 1 or 4,
The driving unit 210 of the main coaxial shaft 211 is composed of first and second main pulleys 240 and 241 that rotate together with a driving sprocket 213 that is rotated by the driving chain 212,
The rotary transmission portion 220 of the driven shaft 221 includes a first driven pulley 250 connected to the first driven pulley 240 by a belt 260 and provided with a driven clutch 226 at one side thereof, ;
A second driven pulley 251 connected to the second driven pulley 241 by a belt 260 and having a driven clutch 226 at one side;
A biaxial shaft 225 coupled to the partition plate 130 of the body frame 100 to allow the first and second driven pulleys 250 and 251 to idle on the driven shaft 221;
A coupling pipe 224 formed at both sides of the coupling clutch 227 engaged with the driven clutch 226 provided at one side of the first and second driven pulleys 250 and 251;
And a sliding key 228 for allowing the coupling pipe 224 to be coupled to the left and right of the driven shaft 221 so as to be shifted to the left and right. And the rotation direction of the receiving slave shaft (221) is changed.

5. The method of claim 4,
The drive sprocket 213 of the drive unit 210 is connected to the connection pipe 224 provided at one side of the first driven gear 222 and the connection pipe 224 is provided at both sides of the first and second driven gears 222 and 223, So that the driven shafts 221 can rotate together when the drive sprocket 213 is rotated by the drive chain 212. The sliding operation portion 300 is supported by the two connecting pipes 224, And a hook 330 is formed on both sides of the driving sprocket 213 so that the driving sprocket 213 can be moved to the left and right using the driving chain 212 to slide and connect the coupling pipe 224, And transmitting rotational force from the coaxial shaft (221) to the main coaxial shaft (211).

A body frame (100);
And a main shaft 211 and a driven winder rod 229 provided on the lower side of the body frame 100 and each being rotated by respective motors 430 to which the main winder rod 217 is provided, (200) composed of a winding part (221);
A curtain paper 410 having one end wound around the main winding wire 217 and the other end wound around the driven winder 229 and connected to one or more various pattern sheets; A sensor 412 for detecting the boundary mark 411 and a curtain paper 411 wound on both ends of the curtain paper 410. The sensor 412 detects the boundary mark 411, A curtain part 400 including a weight bar 420 provided at the center of the curtain part 400;
The rotation direction of each motor 430 provided in the take-up unit 200 and the rotation time of each motor 430 provided in the take-up unit 200 are determined by receiving the signal of the sensor 412 sensing the movement of the boundary mark 411, And a control panel unit (500) provided with a microcomputer for controlling the microcomputer.

8. The method of claim 7,
A coupling boss 442 which is slid to the outside of the shaft gear 441 and a coupling boss 442 which is slid to the outside of the coupling boss 442, The connecting coupling 440 including the power interrupting lever 443 provided at the outer side is provided at one end of the main shaft 211 and the driven shaft 221 so that the main shaft 211 and the slave shaft 211, So as to transmit and block the rotational force of the first arm (221).

8. The method of claim 1 or 7,
A plurality of main coaxial shafts 211 and a plurality of driven shafts 221 are bendably connected to each other at one end of each of the main coaxial shaft 211 and the driven shaft 221, A double blind curtain comprising providing for easy installation