WO2011078583A2

WO2011078583A2 - Blind device

Info

Publication number: WO2011078583A2
Application number: PCT/KR2010/009223
Authority: WO
Inventors: 장성용
Original assignee: (주)한국윈텍
Priority date: 2009-12-22
Filing date: 2010-12-22
Publication date: 2011-06-30
Also published as: KR20110073351A; WO2011078583A3; KR101260918B1

Abstract

It is an aim of the present invention to provide a blind device. The blind device of the present invention comprises: a blind sheet in which a plurality of shielding sheets are coupled in a horizontal direction between front and rear sheets; a first winding roll to which the top of the blind sheet is coupled; a first driving unit which rotates the first winding roll such that the blind sheet is wound/unwound onto/from the circumference of the first winding roll; and a second driving unit which rotates the second winding roll arranged in parallel to the first winding roll, such that either the front or rear sheet of the blind sheet moves relative to the other sheet so as to open the shielding sheet.

Description

Blind device

The present invention relates to a blind apparatus, and more particularly, a blind apparatus designed to open or close the blind sheet at a desired position instead of opening and closing the blind sheet only when the blind sheet, which is a main part, is lowered to the end. More specifically, the present invention relates to a multi-blind device capable of variably opening and closing the blind sheet, which is a main part.

In general, curtains and blinds are installed in windows or entrances of buildings, and are used for the purpose of blocking sunlight, blocking external eyes, soundproofing, and cold protection. Such blinds generally have a structure in which the blind sheet is closed to effectively block the light entering the room, while the blind sheet is opened so that appropriate light enters the room when necessary.

However, the conventional blind apparatus has a problem that the operation of opening and closing the blind sheet by the need of adjustment of light or ventilation is possible only in a state where the blind is down to the end, which hinders efficient lighting or ventilation and inconveniences the user, As a result, the function and usability of the blinds are relatively lowered.

The present invention has been invented to solve the above problems, and an object of the present invention is not to open and close the blind sheet only when the blind sheet, which is the main part, is completely lowered to the end, but to open or close the blind sheet at a desired position. It is an object of the present invention to provide a blind device that can be operated to improve the functionality and usability of the blind. In particular, it is an object of the present invention to provide a variable opening and closing multi-blind apparatus configured to be able to freely adjust the blind sheet in the required position.

In order to achieve the above object, the present invention provides a blind sheet including a plurality of shielding sheets coupled in a transverse direction between front and rear sheets, a first winding roll to which an upper end of the blind sheet is coupled, and the blind sheet to the first winding. Any one of the front and rear sheets of the blind sheet by rotating the first driving unit for rotating the first winding roll to be wound or unrolled around the roll, and the second winding roll disposed in parallel with the first winding roll. A blind device comprising a second drive for moving the sheet relative to another sheet to open the shield sheet.

According to the present invention, by pulling the rotation sheet, which is the main part, in one direction and winding the blind sheet on the first winding roll, one of the two front and rear transparent sheets constituting the blind sheet is moved relative to the other sheet so that the shield sheet Is opened so that one sheet of the blind sheet is pulled more against the other sheet and the open shielding sheet is unfolded in parallel with the two front and rear sheets, thereby automatically shielding the blind sheet by the shielding sheet. In this state, the first winding roll can be continuously rotated to wind the blind sheet. Meanwhile, when the tilting member is rotated in the closed state of the blind sheet, the second roll is rotated by the bevel gear. The take-up roll is rotated, and the rotation of this second take-up roll As one of the two transmissive sheets of the la blind sheet moves upward relative to the other sheet, and thus one transmissive sheet moves upward relative to the other transmissive sheet, As all the shielding sheets connected to each other are unfolded in a direction orthogonal to each other (specifically, in a horizontal direction), the blind sheet can be switched to an open state through which external light and the like can be introduced through the front and rear transparent sheets. Can be operated in the open or closed state of the blind sheet only when fully unfolded and lowered to the end, but the blind sheet is unfolded at the desired position without lowering the blind sheet to the end and if necessary, Freely open the blind sheet or claw It has the effect that can be switched to a state, plan, etc. Due to this efficient lighting, air circulation, and it is possible to obtain the desired results to give convenience to the user, as a result, the relative improvement in functionality and usability of the blind.

In addition, in the present invention, the second winding roll is rotated as a result of the operation of the tilting member so that one of the permeable sheets of the blind sheet is moved relative to the other permeable sheet by the frictional force between the second winding roll and the blind sheet. An operation of opening the shielding sheet is provided, and a friction member for increasing friction is provided between the second winding roll and the blind sheet, so that any one transmissive sheet of the blind sheet is changed by a higher friction force when the second winding roll is rotated. Since it is possible to more reliably move relative to the transmissive sheet, the effect of more complete switching of the open state of the blind sheet can also be expected, which means that the reliability of the product can be more reliably guaranteed.

1 is an exploded perspective view showing a closed mode of the blind device of the present invention

Figure 2 is an exploded perspective view showing the open mode of the blind device of the present invention

FIG. 3 is an exploded perspective view showing an enlarged one end component of the blind apparatus shown in FIG. 1; FIG.

FIG. 4 is an exploded perspective view showing an enlarged view of a component of the other end side of the blind apparatus shown in FIG. 1; FIG.

Figure 5 is an exploded perspective view showing the main configuration of the second drive roll and the second drive unit which is the main part of the present invention;

6 is a perspective view showing a closed mode of the blind apparatus of the present invention.

Figure 7 is a perspective view showing the open mode of the blind device of the present invention

According to the present invention, a blind sheet, a first winding roll to which the blind sheet is coupled, a first driving unit for rotating the first winding roll, and a second driving unit for opening the blind sheet by rotating a second winding roll There is provided a blind apparatus comprising a.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

Specific structural or functional descriptions are merely illustrated for the purpose of describing embodiments in accordance with the concepts of the present invention, and embodiments in accordance with the concepts of the present invention may be embodied in various forms and described in the specification or the application. It should not be construed as limited to these.

Embodiments in accordance with the concepts of the present invention can be variously modified and have a variety of forms specific embodiments will be illustrated in the drawings and described in detail in the specification or the application. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a specific disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and / or second may be used to describe various components, but the components are not limited to the terms. The terms are for the purpose of distinguishing one component from other components only, for example, without departing from the scope of the rights according to the inventive concept, the first component may be named a second component, Similarly, the second component may be referred to as the first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to that other component, but it may be understood that other components may be present in the middle. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle. Other expressions to describe the relationship between components, such as 'between' and 'just between' or 'neighboring to' and 'directly neighboring', should likewise be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. The terms 'comprise' or 'having' in this specification are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof that is implemented, and that one or more other features or numbers, It is to be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be interpreted as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is an exploded perspective view showing a closed mode of the blind apparatus according to the present invention, Figure 2 is an exploded perspective view showing an open mode of the blind apparatus according to the present invention, Figure 3 is one end side component of the blind apparatus shown in Figure 1 4 is an exploded perspective view showing an enlarged view of a component of the other end of the blind apparatus shown in FIG. 1, and FIG. 5 is an exploded view of the main components of a second drive roll and a second drive unit, which are main parts of the present invention. 6 is a perspective view showing a closed mode of the blind apparatus of the present invention, Figure 7 is a perspective view showing an open mode of the blind apparatus of the present invention. Referring to this, in the present invention, the blind sheet 10 is formed by coupling a plurality of shielding sheet 16 in the transverse direction between the front seat 12 and the rear seat 14, and the upper end of the blind sheet 10 A first driving part for rotating the first winding roll 20 such that the combined first winding roll 20 and the blind sheet 10 are wound or unrolled around the first winding roll 20; Rotating the take-up roll 30 to move the one sheet 12 of the front and

rear sheets

12, 14 of the blind sheet 10 relative to the other sheet 14 to open the shielding sheet 16 It is a blind apparatus which consists of two drive parts. The present invention is a multi-blind device capable of variable opening and closing.

According to the present invention, the first winding roll 20 and the second winding roll 30 are rotatably coupled to the main support unit, and the first winding roll 20 and the second winding roll 30 are respectively provided with a first driving part. A second driving unit is operatively connected, and the first winding roll 20 has a structure in which the upper end of the blind sheet 10 is coupled.

The main support unit includes one side bracket 41 for supporting the first driving unit and the second driving unit connected to one end of the first winding roll 20 and the second winding roll 30, and the first winding roll 20. The other bracket 44 coupled to the other end of the second winding roll 30 via two coupling shafts 56 rotatable, and the support bodies 48 to which the two

brackets

42 and 44 are coupled to both ends. It is composed of

The one side bracket 41 has an inner bracket 43 in which two shaft holes 43h1 and 43h2 communicate with both sides, and is coupled to a position of an outer surface of the inner bracket 43 and two shaft holes of the inner bracket 43 ( It consists of an outer bracket 42 having two

support shafts

46a and 46b coupled to 43h1 and 43h2 on its inner side. A fastening boss protrudes inwardly on the inner side surface of the outer bracket 42, and a corresponding fastening hole is provided on the inner bracket 43, and the bolt is fastened to the fastening hole of the inner bracket 43 and the fastening boss of the outer bracket 42. By combining fasteners such as the two inner and outer brackets 42 are combined to form one side of the bracket (41). At this time, the

support shafts

46a and 46b provided on the outer bracket 42 are provided with a coupling shaft portion having a relatively small diameter at the distal end portion, and the coupling shaft portion is provided with a plurality of incision grooves having a longitudinally cut structure. On the outer circumferential surface of the shaft portion, there is a wedge-shaped hook 46hk whose width becomes gradually thicker from the distal end side to the proximal end side (that is, the direction away from one end of the first winding roll 20 and the second winding roll 30). It is provided.

The other bracket 44 provided at a position opposite to the position of the one side bracket 41 has two support shafts (not shown) on the inner side, and two support shafts on the inner side of the other side bracket 44 are coupled to the coupling shaft. 56 is rotatably coupled, and the coupling shaft 56 is fitted to the other end of the first winding roll 20 and the second winding roll 30 by fitting. At this time, the coupling shafts 56 respectively coupled to the two support shafts of the other side bracket 44 are provided with a plurality of locking pieces 56a in the radial direction with respect to the center. A plurality of locking pieces 56a are provided in a windmill shape, and the locking pieces 56a of the coupling shaft 56 are formed by the recessed grooves 21 of the first winding rolls 20 and the second locking pieces 56a. Engaged in the inner engaging portion formed by the concave groove 31 of the take-up roll 30, so that the coupling shaft 56 and the first and second take-up rolls 20, 30 can be rotated together without turning. do. In addition, the other side bracket 44 is provided with a plurality of fastening holes that penetrate to the inner and outer sides on the outer portion.

The support body 48 is configured in the form of a sunshade extending upright to the lower portion in the horizontal portion, the support body 48 meets the fastening boss and the fastening hole of one bracket (41) and the fastening hole of the other bracket (44) A fastening boss is provided.

Accordingly, the two

body brackets

42 and 44 face each other at both ends of the support body 48, and the support body 48 is provided with the fastening boss of one bracket 41 and the fastening hole of the other bracket 44. When coupling fasteners such as bolts to be fastened to them at the same time in a state to meet the fastening boss, the main support unit having a structure in which both

brackets

42 and 44 are coupled to both ends of the support body 48, respectively. You can do it. The main support unit serves as a support for rotatably supporting the first winding roll 20 and the second winding roll 30 to which the upper end of the blind sheet 10 is coupled.

The first take-up roll 20 and the second take-up roll 30 have recessed grooves extending in the longitudinal direction, and the openings of the recessed grooves are provided with engaging pieces at front and rear end positions facing each other. That is, a pair of internal locking portions are formed in the first winding roll 20 and the second winding roll 30 by the recessed grooves, and the pair of locking pieces are provided side by side so as to face each other at the open ends of the recessed grooves. The outer locking portion is formed by this. While extruding the 1st winding roll 20 and the 2nd winding roll 30, an outer locking part can be formed by a pair of inner locking part by a recessed groove, and a pair of locking pieces.

An upper end of the blind sheet 10 is coupled to the first winding roll 20. The blind sheet 10 is formed by combining a plurality of shielding sheet 16 in the transverse direction between the front and rear sheets (12, 14). Here, the lateral direction means a horizontal direction perpendicular to the vertical direction.

The front and

rear sheets

12 and 14 are composed of a plurality of thin wefts and permeable woven sheets, and are generally rectangular elongated sheets in a transverse direction on inner surfaces of the front and

rear sheets

12 and 14 facing each other. The shielding sheet 16 is connected. That is, one end of the upper and lower ends of the shielding sheet 16 is connected to the rear seat 14 and the other end is connected to the front seat 12, such a long rectangular sheet shield in the transverse direction (ie, horizontal direction) The sheet 16 has a structure arranged at regular intervals along the vertical direction.

A band strap is coupled to an upper end of any one of the

seats

12 and 14 of the front and

rear seats

12 and 14 of the blind sheet 10 having the structure, and the band straps extend in the longitudinal direction to the first winding roll 20. The upper end of the blind sheet 10 has a structure coupled to the circumference of the first winding roll 20 by being caught in the recessed groove and caught by the two outer locking pieces, and is prevented from rotating the first winding roll 20. Accordingly, the blind sheet 10 can be wound or unwound. The upper and rear ends of the two front and

rear sheets

12 and 14 of the blind sheet 10 may be connected to the band strap.

Any one of the two front and

rear transmissive sheets

12 and 14 of the blind sheet 10 passes through the second winding roll 30 parallel to the first winding roll 20 and at the same time any one of the above. The upper end of the sheet 12 is coupled to the first take-up roll 20 via the band strap, and the other sheet 14 also passes through the circumference of the second take-up roll 30. At this time, the upper end of the other sheet 14 via the circumferential portion of the second winding roll 30 may also be coupled to the first winding roll 20. As described above, the upper end of the other sheet 14 is also coupled to the band strap, so that two front and

rear sheets

12 and 14 of the blind sheet 10 may be coupled to the first winding roll 20.

The first winding roll 20 is rotatably connected to one bracket 41 of the main support unit via the

coupling shafts

52 and 54 and at the same time to one side bracket 41 so as to be rotated by the first driving unit. Connected. In this case, the

coupling shafts

52 and 54 have an inner sleeve 52 having a sprocket 61 at one end thereof and an outer sleeve 54 coupled to an outer circumferential surface of the inner sleeve 52. Specifically, the inner sleeve 52 is provided with two mutually parallel sprocket pieces (61a and 61b) integrally through the intermediate connecting portion, the ball receiving groove is formed on the inner surface facing each other of each sprocket piece (61a and 61b) One side circumference is coupled to the inner sleeve 52 formed with an opening hole 52h forming two side-by-side engaging portions, and the outer circumferential surface of the inner sleeve 52 is fitted to the first winding roll 20 to be coupled. Outer sleeve 54. At this time, the two

support shafts

46a and 46b of the one side bracket 41 constituting the main support unit are coupled to the coil springs by interference fit, and the inner sleeve 52 at each end of the coil springs, respectively. The engaging piece which is caught by the engaging part formed by the one side peripheral opening 52h of the side is provided.

The outer sleeve 54 of the

coupling shafts

52 and 54 is fitted to the first winding roll 20 in a state of being coupled to the shaft hole 43h1 of the inner bracket 43 constituting the one side bracket 41, and at the same time The inner sleeve 52 of which the outer sleeve 54 is coupled to the outer circumferential surface is coupled to the outer circumferential surface of the support shaft 46a of the outer bracket 42 constituting the one side bracket 41, and at the same time, the coiled spring has one side bracket ( The support shaft 46a of 41 is forcibly fitted to the outer circumferential surface thereof and has a structure accommodated in the inner sleeve 52. Reference numeral 63 denotes a ring gear fitted to the circumference of the support shaft 46a of the inner side of one bracket 41 before the

coupling shafts

52 and 54. In the present invention, the coupling shaft is coupled to the key groove 53KG formed in the ring gear. A key 52K provided at one end of the inner sleeve 52 of the 52 and 54 is engaged.

In addition, between the two sprocket pieces (61a, 61b) of the inner sleeve 52 constituting the engaging shaft (52, 54) to rotate the engaging shaft (52, 54) and the first winding roll 20 Rotation strap 70 is coupled. The rotation strap 70 is coupled to a plurality of balls 73 at regular intervals to the flexible string 71 (general rope, etc.), such balls 73 are two

sprocket pieces

61a, 61b) is inserted into each ball receiving groove provided on the inner side, and the

coupling shafts

52 and 54 and the first winding roll 20 are rotated as the rotation strap 70 is pulled to wind or unwind the blind shaft. It becomes possible.

The second winding roll 30 is rotatably connected to one bracket 41 of the main support unit via the

other coupling shafts

62 and 64, and at the same time, the one side bracket 41 is rotatably operated by the second driving unit. Is connected to. In detail, the

other coupling shafts

62 and 64 may have a plurality of keys 52K protruding in a radial direction at one end thereof, and an inner sleeve 62 having an opening hole 62h having two side-by-side engaging portions formed at one peripheral portion thereof. ) And an outer sleeve 64 coupled to the outer circumferential surface of the inner sleeve 62, the outer circumferential surface of which is fitted to the second winding roll 30. At this time, the coil spring is coupled to the outer circumferential surface of the other support shaft 46b of the one side bracket 41 constituting the main support unit by interference fit, and one end of the inner sleeve 62 at each end of the coil spring. A locking piece is provided that is caught by the locking portion formed by the circumferential opening hole 62h.

The outer sleeve 64 of the

coupling shafts

62 and 64 is fitted to the second winding roll 30 in a state of being coupled to another shaft hole 43h2 of the inner bracket 43 constituting the one side bracket 41, At the same time, the inner sleeve 62 with the outer sleeve 64 coupled to the outer circumferential surface is coupled to the outer circumferential surface of the other support shaft 46b of the outer bracket 42 constituting the one side bracket 41, and at the same time the coiled spring The bracket 41 is forcibly fitted to the outer circumferential surface of the support shaft 46b and has a structure accommodated inside the inner sleeve 62.

The engaging pieces formed at both ends of the coiled spring are respectively caught by two parallel engaging portions formed by the opening holes 52h and 62h of the

inner sleeves

52 and 62, respectively, so that the first winding roll 20 and The blind sheet 10 supported by the second winding roll 30 has a function of supporting the first winding roll 20 and the second winding roll 30 so as to maintain an open state and a closed state. Specifically, the one end side engaging piece of the coiled spring is caught by one of the engaging portions formed by the opening holes 52h and 62h to support the blind sheet 70 so as not to be fluctuated at the unwinded position, while the blind is held. When the sheet 70 is wound, the blind sheet 70 is supported to be smoothly wound by being caught by another locking portion formed by the opening holes 52h and 62h.

The

other coupling shafts

62 and 64 connecting the second winding roll 30 are rotatably coupled to the other support shaft 46b of the inner surface of one bracket 41 constituting the main support unit. One end of the second winding roll 30 is coupled to the other support shaft 46b of the one side bracket 41 via the driving unit.

* The second drive unit is any one of the blind sheet 10 by rotating the second winding roll 30 by driving the bevel gear 60 and the bevel gear 60 coupled to the second winding roll (30). And a tilting member 66 for moving the sheet 12 relative to the

other sheets

14 and 16 to switch the blind sheet 10 to an open state.

At this time, the bevel gear 60 is relatively rotatable to the other support shaft (46b) of the two support shafts (46a, 46b) of the inner surface of the one side bracket 41 constituting the main support unit and at the same time different coupling A first bevel gear portion 65 axially coupled to the

inner sleeves

62 and 64 of the

shafts

62 and 64 via a key 52K and a key groove 53K, and an upper end portion of the tilting member 66; And a second bevel gear portion 67 which is provided and engaged in a direction orthogonal to the first bevel gear portion 65. Ends of the inner sleeve 62 and the first bevel gear portion 65 that face each other in the

coupling shafts

62 and 64 are provided with a key groove 53KG and a key 52K. The

shafts

62 and 64 and the first bevel gear portion 65 are rotatably coupled at the same time.

In addition, the tilting member 66 has an upper tilting bar 66a having a second bevel gear portion 67 at its upper end, and a lower tilting bar connected to the upper tilting member 66a via a hinge 66c. 66b), the lower tilting bar 66b can be folded in a direction parallel to the first take-up roll 20 and the second take-up roll 30 around the hinge portion 66c. Since the distance between the tilting members 66 does not occur, the handling and the like are superior.

In addition, the outer circumferential surface of the tilting member 66 is provided with a stepped portion, and the stepped portion is mounted in a state of being caught by a separate fixed support (which means a fixed bracket, etc.) fixed to the inner side of the one side bracket 42. It is possible to rotate the tilting member 66. All of the fixing support to be mounted to the one side bracket 42 to enable the rotation of the tilting member 66 will be applicable.

Accordingly, the first bevel gear portion 65 of the bevel gear 60 is fitted to the support shaft 46b of the one side bracket 41, and the second bevel gear portion 65 has second coupling shafts 62 and 64. ) Inner sleeve 62 is coupled, the outer sleeve 64 of the second coupling shaft (62, 64) is fitted into the shaft hole (43h2) of the inner bracket 43 constituting one side bracket 41 to the second By being fitted inside the take-up roll 30, the second drive part composed of the bevel gear 60 and the second take-up roll 30 are configured to be driven in a driving manner.

In this case,

concave grooves

55 and 65 are formed in both the outer sleeve 54 of the

first coupling shafts

52 and 54 and the outer sleeve 64 of the

second coupling shafts

62 and 64. The inner locking portions formed by the 55 and 65 hooks on the locking portions formed by the opening holes 52h and 62h of the

inner sleeves

52 and 62, respectively, and at the same time, the recessed recesses 55 and 64 of the

outer sleeves

54 and 64, respectively. The outer locking portion formed at 65 is caught by an inner locking portion formed by the recessed grooves 21 and 32 of the first winding roll 20 and the second winding roll 30, thereby preventing the operation of the first driving portion and the second driving portion. Accordingly, the

first coupling shafts

52 and 54 and the

second coupling shafts

62 and 64 may be configured to rotate together with the first winding roll 20 and the second winding roll 30.

Meanwhile, in the present invention, the second driving unit may be configured to more reliably switch the shielding sheet 16 of the blind sheet 10 to the open state by using the friction member 90. In other words, the friction member 90 is provided at the periphery of the second winding roll 30 which is rotated by the second driving unit, and the two parallel front and rear sheets connected to the front and rear ends of the shield sheet 16 of the blind sheet 10 ( It is possible to have a structure in which any one of the

sheets

12 and 14 is moved relative to the other sheet 14.

At this time, the friction member 90 may be provided with a circumferential portion of the second winding roll 30 and made of friction rubber in contact with the blind sheet 10. When the friction member 90 in the form of friction rubber is attached to the circumference of the second winding roll 30, the frictional force between the surface of the blind sheet 10 and the circumference of the second winding roll 30 increases, so that the second Rotation of the take-up roll 30 allows one of the two

transparent sheets

12, 14 of the blind sheet 10 to be moved relative to the other sheet 14 more reliably, thereby shielding The seat 16 can be called in an open state.

In addition, the friction member 90 may be composed of a velcro fastener provided on the circumferential portion of the second winding roll 30 and the face of the blind sheet 10 facing each other. When the velcro fastener-shaped friction member 90 is attached to the circumference of the second winding roll 30 and rotated, it is possible to obtain the effect of switching the shielding sheet 16 to a more securely open state as described above. Of course, in addition to the friction rubber and the Velcro fastener, any means capable of more reliably switching the open state of the blind sheet 10 by the frictional force is applicable.

If the outline of the process of assembling the multi-blind device of the present invention by the above configuration, one side bracket in a state in which the upper end of the blind sheet 10 is coupled to the first winding roll 20 to pass through the second winding roll 30. The first drive unit and the second drive unit are coupled to the

support shafts

46a and 46b of the outer bracket 42 of the 41, respectively, and the first and

second coupling shafts

52 and 54 and 62 and 64, respectively. Is coupled to one end of the first take-up roll 20 and the second take-up roll 30, while the other third engaging shaft 56 rotatably coupled to the other bracket 44, the first take-up roll 20 ) And the other end of the second winding roll 30, and then coupling the two side brackets (42,44) to both ends of the support body 48 via a fastener through the variable opening and closing of the variable blind of the present invention I can make it.

At this time, a cutting groove is provided in the coupling shaft portion of the

support shafts

46a and 46b provided at one side of the bracket 41, and a hook 46hk is provided on the outer circumferential surface of the coupling shaft portion, and the coupling shaft portion of the

support shafts

46a and 46b is provided. Hooks 46hk pass through through

holes

54h and 64h provided in the

outer sleeves

54 and 64 of the first and

second coupling shafts

62 and 64, respectively. Since it is assembled in a manner that is caught on the circumferential wall of), the process of assembling the first coupling shaft (52, 54) and the second coupling shaft (62, 64) is made faster and easier. That is, the

first coupling shafts

52 and 54 and the

second coupling shafts

62 and 64 can be easily and easily assembled in a one-touch manner to be hooked to the hook 46hk.

In addition, the third coupling shaft 56 of the other side bracket 44 has a structure in which a plurality of engaging pieces are provided in the radial direction, so that the third coupling shaft 56 does not turn against the first and second winding rolls 30. It has a structure that is firmly coupled.

According to the present invention having such a configuration, in FIG. 6, the shielding sheet 16 constituting the blind sheet 10 is unfolded in parallel with the two front and back

transparent sheets

12 and 14 so that external light does not enter the room. Show closed status. In other words, the blind sheet 10 is closed. Referring to FIG. 6, when the blind strap 10 is wound around the first winding roll 20 by pulling the rotation strap 70 in one direction, one of the two

translucent sheets

12 and 14 may be transparent sheets 12. ) Is moved relative to the other sheet 14 so that any one of the sheets 12 of the blind sheet 10 is opened while pulling more with respect to the other sheet 14 while the shielding sheet 16 is open. The shielding sheet 16 is operated to unfold in parallel with the two front and

rear sheets

12 and 14, thereby automatically closing the blind sheet 10 in a light shielded state by the shielding sheet 16. It is possible to wind the blind sheet 10 by rotating the first winding roll 20 in a state.

Meanwhile, in FIG. 7, the shielding sheet 16 constituting the blind sheet 10 is opened in a direction orthogonal to two front and

rear transmissive sheets

12 and 14 to block light. That is, the blind sheet 10 is opened to open the light or the like to enter the room. Referring to FIG. 7, when the tilting member 66 is turned in the closed state of FIG. 6, the bevel gear 60, specifically, the first bevel gear part 65 rotates, and the first bevel gear part 65 is rotated. The second bevel gear portion 67 meshed with the second rotation rotates, and the second winding roll 30 axially coupled to the second bevel gear portion 67 rotates.

Then, according to the rotation of the second winding roll 30, any one of the two

sheets

12, 14 of the

transparent sheet

12, 14 of the blind sheet 10, in the present invention, the front sheet 12 is another sheet ( 14), i.e., two

transmissive sheets

12,14 as they move upward relative to the rear sheet 14 and as one such transmissive sheet 12 moves relative relative to the other transmissive sheet 14 All the shielding sheets 16 connected to the front and rear ends are spread in a direction perpendicular to each other (specifically, in a horizontal direction), and are switched to an open state in which external light and the like can be introduced through the front and

rear transmissive sheets

12 and 14. do.

The important point in the present invention is that the blind sheet 10 can be operated in the open state or the closed state of the blind sheet 10 only when it is completely unfolded and completely lowered, but without lowering the blind sheet 10. You can freely manipulate the open or closed state at any position.

Conventionally, since the blind sheet 10 can be opened or closed only when the blind sheet 10 is completely lowered, the operation of opening and closing the blind sheet 10 by the need for adjustment of light or ventilation is lowered to the end. It is possible only in a state of being present, and thus, there is a problem of inhibiting efficient light or ventilation and causing inconvenience to the user, resulting in relatively degrading the functionality and usability of the blind, but the present invention provides a blind sheet ( It is possible to freely switch the blind sheet 10 to an open state or a closed state by unfolding the blind sheet 10 at a desired position without manipulating the end 10 and manipulating the tilting member 66, which is a main part, if necessary. In this way, efficient light and ventilation can be provided, and it is convenient for users. It is possible to obtain the desired result of overcharging the relative improvement in functionality and usability of the blind.

A key feature of the present invention is that the blind sheet 10 is extended to a desired position, for example, about 30 cm high or about 40 cm high from the bottom of the window without lowering the blind sheet 10 to the end and in the open or closed state. It can be operated, which is very excellent in the functionality and usability of the blinds, and furthermore, the commercialization of the product can be very improved due to such excellent functionality and usability.

Meanwhile, in the present invention, the second winding roll 30 is rotated as a result of the operation of the tilting member 66, and the friction of the blind sheet 10 is caused by the friction between the second winding roll 30 and the blind sheet 10. By moving one of the transmission sheet 12 relative to the other transmission sheet 14, the operation to open the shielding sheet 16, the friction force is applied between the second winding roll 30 and the blind sheet 10. Since the height is provided with the friction member 90, the one permeable sheet 12 of the blind sheet 10 is compared with the other permeable sheet 14 by the higher friction force at the time of rotation of the 2nd winding roll 30. As shown in FIG. Since the relative movement can be reliably performed, the effect that the switching of the open state of the blind sheet 10 is more complete can be expected. For example, in the present invention, the blind state of the blind is more reliably and securely opened by the friction member 90 interposed between the second winding roll 30 and the blind sheet 10, which are the main parts for opening the blind sheet 10. It can be guaranteed.

As described above, with reference to the preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that it can be changed.

The present invention can not be operated in the open state or closed state of the blind sheet only when the blind sheet is fully extended and lowered to the end, but the blind sheet is unfolded at a desired position without lowering the blind sheet to the end and tilted as a main part if necessary. By operating the member, the blind sheet can be freely switched to an open state or a closed state, thereby facilitating efficient lighting and ventilation and providing convenience to the user. As a result, the functionality and usability of the blind are relatively low. Since it has an effect to be improved, it may be utilized as an industrially useful and preferred blind device.

Claims

Blind sheet;

A first winding roll to which the blind sheet is coupled;

A first driving part rotating the first winding roll;

And a second driving unit which opens the blind sheet by rotating a second winding roll.

Blind device.
The method of claim 1,

The blind sheet has a structure in which a plurality of shielding sheets are coupled between front and rear sheets, and an upper end is coupled to the blind sheet.

The blind sheet is wound or unrolled around a circumference of the first winding roll according to the rotation of the first winding roll by the first driving unit,

The second driving unit rotates the second winding roll disposed in parallel with the first winding roll to move one of the front and rear sheets of the blind sheet relative to another sheet to open the shielding sheet. Configured

Blind device.
The method of claim 1,

The second drive unit moves the bevel gear coupled to the second winding roll and the bevel gear to rotate the second winding roll so that any one sheet of the blind sheet is relatively moved relative to the other sheet. It includes a tilting member for switching the sheet to the open state

Blind device.
The method of claim 3, wherein

The bevel gear may include a first bevel gear part provided on the support shaft to be relatively rotatable and connected to the rotation shaft; And

A second bevel gear part provided on an upper end of the tilting member and engaged in a direction orthogonal to the first bevel gear part;

Blind device.
The tilting member of claim 4, wherein the tilting member comprises: an upper tilting bar having the second bevel gear part provided at an upper end thereof; And

A lower tilting bar coupled to the upper tilting bar via a hinge part;

Blind device.
The method of claim 1,

A bracket coupled to ends of the first winding roll and the second winding roll;

A support shaft provided in the bracket and rotatably coupled to the first bevel gear part of the bevel gear;

And a coupling shaft rotatably coupled with the first bevel gear portion and axially coupled to the second winding roll.

Blind device.
The method of claim 6,

Ends facing each other with the coupling shaft and the first bevel gear portion are configured to be rotated together by being coupled to each other by engagement of the key groove and the key.

Blind device.
The method of claim 1,

The blind sheet is a blind device, characterized in that to be switched to the open state using a friction member.
The method of claim 8,

The blind sheet is made of a plurality of shielding sheet is coupled between the front and rear sheets made of the upper end is coupled to the blind sheet,

The second drive unit is configured to switch the shielding sheet of the blind sheet to an open state by using a friction member.

Blind device.
The method of claim 9,

The friction member may include any one of two parallel front and rear sheets interposed between the second winding roll rotated by the second driving unit and the blind sheets facing each other and connected to the front and rear ends of the shielding sheet of the blind sheet. Relative to another sheet

Blind device.
The method of claim 10,

The friction member is composed of a friction rubber provided on the circumferential portion of the second winding roll and the face of the blind sheet facing each other

Blind device.
The method of claim 10,

The friction member is composed of a velcro fastener provided on the circumferential portion of the second winding roll and the face facing each other of the blind sheet.

Blind device
The method of claim 1, wherein the one side bracket for supporting the first drive unit and the second drive unit connected to one end of the first take-up roll and the second take-up roll, and the first take-up roll and the second take-up roll The other side bracket is coupled to the other end via a rotatable coupling shaft, and the two brackets further comprises a support body coupled to both ends

Blind device.
A blind sheet formed by combining a plurality of shielding sheets between front and rear sheets;

A first winding roll to which an upper end of the blind sheet is coupled;

A first driving part which rotates the first winding roll so that the blind sheet is wound around or unrolled around the first winding roll;

And a second driving unit which rotates a second winding roll disposed in parallel with the first winding roll to move one of the front and rear sheets of the blind sheet relative to another sheet to open the shielding sheet.

Blind device.