KR20170130860A - A winding device for roll blind - Google Patents

Abstract

The present invention relates to a winding device for a roll blind. More specifically, the present invention relates to the winding device for a roll blind, facilitate operation by using elasticity and distributing a force when a roll opening and closing type blind installed on a wall to control lighting is ascended and descended.

Description

[0001] A WINDING DEVICE FOR ROLL BLIND [0002]

The present invention relates to a roll blind winding device, and more particularly, to a roll blind winding device that is capable of adjusting the lighting of a roll, such as a wall, Up device.

In general, blinds are divided into horizontal open type, vertical open type and roll open type so that they can be used for adjusting the lighting, heating and visibility installed on the windows of various buildings, and the blinds having the roll open type are moved up and down, As shown in FIG.

Accordingly, a stopper device is provided to prevent the roll bar from being lifted and lowered arbitrarily after the operation so that the roll screen can be opened and closed by operating the strip attached to the side surface of the support bar, and the weight bar is coupled to the lower portion so that the roll screen can be unfolded.

However, when the roll shed is lowered, the roll can be lowered rapidly by the weight bar, and the roll shed can be unfolded. However, when the ram is raised or lowered by the roll shed, the operation force is increased during ascending and descending.

In addition, there is a problem that the water surface of the internal structure is shortened and damaged by the repeated operation when the vehicle is ascending / descending.

Korean Patent No. 10-0770043 "Semi-automatic roll blind" has been proposed as a conventional technique to solve such a problem.

In this conventional technique, the drive bracket and the driven bracket are coupled to each other at both sides of the support rod on which the blind is wound, and the support bracket is rotatable by the operation of a pulling string. Inside the support rod, And a connection rod having a threaded portion is coupled to the other side, so that the excel spring can be moved by rotation of the support rod.

However, if an excel spring is formed over a certain length, its length is increased and elasticity is easily weakened, and it can not have sufficient elasticity for a long period of use.

Also, it is necessary to change the size and length of the excel spring according to the size of the blind, and it is inconvenient to replace it when it is broken.

SUMMARY OF THE INVENTION The present invention is conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a roll capable of raising and lowering a roll easily by controlling a rotation speed through an elastic force applied by rotation of a support rod when a blind And a winding device for blinds.

It is still another object of the present invention to provide a winding device for a roll blind which can be efficiently installed in a narrow space by being able to be easily operated by an elastic force and made of a double layer so as to sequentially receive the elastic force applied in the operation of the blind There is.

It is a further object of the present invention to provide a roll blind rewinder which is constructed in a combined structure so as to be able to extend and shorten a configuration in which the elastic force is applied according to the length and size of the blind, Device.

In order to achieve the above object, according to the present invention, there is provided a roll blind, comprising a support bar rotatably coupled to move up and down a roll screen wound by operation of an operation bar inside a fixing bracket positioned on both sides so as to be fixed to a wall surface A winding device comprising: a stationary shaft coupled to the stationary bracket so as to be positioned inside the support rod; A rotatable portion which is in close contact with the fixing bracket and is rotatably coupled to the fixing shaft so as to support the supporting rod; A first elastic part coupled to the rotation part so as to be positioned inside the support rod and generating an elastic force by rotation of the support rod and being shortened and extended in the longitudinal direction; A connection shaft coupled to the first elastic portion and rotatably installed on the fixed shaft; And a connection member coupled to the inside of the support rod and transmitting a rotational force generated when the roll screen is lifted and lowered to the first elastic portion and the connection shaft.

The first elastic portion may include a first protrusion protruding inwardly from the first protrusion protrusion protruding from the first protrusion protrusion, the first protrusion protruding inward from the first protrusion protrusion, And a first spring having a resilient force by being engaged with the first projections of the first connection portions arranged on both sides and having both ends connected to each other by rotation, .

A second elastic part movably coupled to an outer circumferential surface of the connection shaft in a longitudinal direction and being located inside the first elastic part, generating elastic force by contraction and expansion due to rotation of the support rod, .

The second elastic portion may include a second protrusion formed on both sides of the first elastic portion and the connection shaft to receive the first elastic portion and the connection shaft, protruding inward and a second protrusion protruding in the outward direction, A second connecting portion formed with second insertion grooves 65 to which the second protruding protrusions are coupled and capable of being coupled with each other; and both ends of the second connecting portions disposed on both sides of the second connecting portion are engaged with each other, And a second spring having a first end and a second end.

And a blocking plate coupled to an inner side of the fixed shaft to prevent the first elastic part, the second elastic part, and the connection shaft from separating from each other and to prevent interference with the support rod.

And a coupling member which is coupled to the connection shaft and is in close contact with the fixing shaft so as to have a frictional force so that the first and second elastic portions sequentially have an elastic force when the support rod is rotated.

And a support bar rotatably coupled to move up and down a roll screen wound by the operation of the operation bar on the inner side of a fixing bracket positioned on both sides so as to be fixed to the wall surface of the roll blind, A stationary shaft coupled to the stationary bracket; A rotatable portion which is in close contact with the fixing bracket and is rotatably coupled to the fixing shaft so as to support the supporting rod; A first elastic part coupled to the rotation part so as to be positioned inside the support rod and generating an elastic force by rotation of the support rod and being shortened and extended in the longitudinal direction; A connection shaft coupled to the first elastic portion and rotatably installed on the fixed shaft; A second elastic part movably coupled to an outer circumferential surface of the connection shaft in a longitudinal direction and being located inside the first elastic part, generating elastic force by contraction and expansion due to rotation of the support rod, .

The first elastic portion may include a first protrusion protruding inwardly from the first protrusion protrusion protruding from the first protrusion protrusion, the first protrusion protruding inward from the first protrusion protrusion, And a first spring having a resilient force by being engaged with the first projections of the first connection portions arranged on both sides and having both ends connected to each other by rotation, .

According to the winding apparatus for a roll blind according to the present invention, an elastic force is generated by the second elastic portion and the first elastic portion provided in the inside of the support rod wound up and down so that the roll screen can move upward and downward, And an upward rotation is smoothly carried out through the elastic force generated by the falling when the vehicle is lifted up and down, thereby controlling the up / down speed.

According to the present invention, an elastic force is sequentially generated in the second elastic portion and the first elastic portion, which are formed in a double operation, to increase the rotation efficiency and to install the blind in a narrow space, .

According to the present invention, a spring of the same size can be used for various blinds in a combined structure in which the second elastic portion and the first elastic portion can be extended and shortened in the longitudinal direction according to the length and size of the blind, It is possible to easily replace a broken configuration.

1 is a perspective view showing a winding device for a roll blind according to the present invention,
2 is a perspective view showing a winding device for a roll blind having a second elastic part according to the present invention,
3 is an exploded perspective view showing a decomposed state of the first elastic part and the second elastic part according to the present invention,
FIG. 4 is a cross-sectional view illustrating a state in which a first elastic part and a second elastic part are engaged with each other according to the present invention,
5 is a conceptual diagram showing an installation state according to the present invention,
FIG. 6 is a conceptual diagram illustrating an operating state during ascending / descending according to the present invention,
7 is an operational view showing the operating state of the second elastic part according to the present invention,
8 is an operational view showing an operating state of the first elastic part according to the present invention.

Hereinafter, a winding apparatus for a roll blind according to the present invention will be described in conjunction with the accompanying drawings.

FIG. 1 is a perspective view showing a winding device for a roll blind according to the present invention, FIG. 2 is a perspective view showing a winding device for a roll blind having a second elastic part according to the present invention, FIG. 4 is an exploded perspective view showing a disassembled state of the first elastic part and the second elastic part, FIG. 4 is a sectional view showing the first elastic part and the second elastic part according to the present invention, FIG. FIG. 6 is a conceptual diagram illustrating an operating state during a lifting / lowering operation according to the present invention, FIG. 7 is an operation diagram illustrating an operating state of a second elastic part according to the present invention, and FIG. Fig. 8 is an operation diagram showing an operating state of the first elastic portion. Fig.

As shown in FIGS. 1 to 8, the present invention relates to a winding device for a roll blind, and more particularly, to a winding device for a roll blind, And more particularly to a winding device for a roll blind that can be operated easily.

The present invention comprises a support bar rotatably coupled to an inner side of a fixing bracket located on both side ends so as to be fixed to a wall surface so that a roll screen wound by the operation of the operation bar is lifted and lowered and has an elastic force through a force applied during ascending and descending The rotary shaft 20, the first elastic portion 30, the connecting shaft 40, and the connecting member 50 so as to be able to ascend and descend conveniently.

The fixed shaft 10 is coupled to the fixing bracket 100 so as to be positioned inside the support rod 110.

The fixed shaft 10 is formed with a relatively large body at a predetermined interval at an end coupled with the fixed bracket 100. One side of the fixed shaft 10 is coupled with the fixed bracket 100 and the other side is provided with a fixing groove 11, .

At this time, it is preferable that the fixing groove 11 can be engaged with the first connection portion 31 described later.

The fixing shaft 10 and the fixing bracket 100 are coupled to each other by a generally used blind fixing method.

The rotation unit 20 is rotatably coupled to the stationary shaft 10 so as to be in close contact with the stationary bracket 100 and support the support rod 110.

Here, the support rod 110 is coupled to the outer circumferential surface of the rotation part 20, and rotated together with the support rod 110.

The first elastic part 30 is coupled to the rotation part 20 so as to be positioned inside the support rod 110. An elastic force is generated by the rotation of the support rod 110 and can be shortened and extended in the longitudinal direction .

The first elastic part 30 includes a first connection part 31 and a first spring 36.

Accordingly, the first connection portion 31 is formed with a first through-hole 32 inserted into the fixed shaft 10 so as to be rotatable, and includes a first protrusion 33 protruding inwardly from the first protrusion 33, The first protrusion protrusion 34 and the first protrusion protrusion 34 are coupled to each other so that the first protrusion protrusion 34 and the first protrusion protrusion 34 can be coupled with each other.

The first spring (36) is engaged with the first projecting portion (33) of the first connection portion (31) disposed on both sides of the first spring (36).

That is, the first elastic part 30 is disposed on both sides of the first connection part 31 such that the first projection part 33 is located on the inner side, and the first spring 36 is disposed on both sides of the first elastic part 30, And both ends are joined to the first projecting portion 33.

A plurality of the first elastic portions 30 constructed as described above are arranged in the longitudinal direction so that the outer sides of the first connection portions 31 located on both sides are in contact with each other to form the first protrusion protrusion 34 and the first insertion groove 35 can be joined and extended and shortened.

The connection shaft 40 is coupled to the first elastic part 30 and is rotatably installed on the fixed shaft 10.

The connection shaft 40 is provided with a third protrusion protrusion 42 whose longitudinal direction is formed with a third through groove 41 into which the fixing shaft 10 is inserted and the first insertion groove 35 is coupled to both sides thereof, And a third insertion groove 43 into which the first projection 32 is inserted.

The third insertion groove 43 is formed in the longitudinal direction so as to be exposed to the outer circumferential surface of the connection shaft 40.

And is connected to the third through groove 41 of the connection shaft 40 and has elastic force sequentially applied to the first elastic part 30 and the second elastic part 60 when the support rod 110 rotates And an engaging member (80) tightly attached to the fixed shaft (10) so as to have a frictional force.

Therefore, it is preferable that the engaging member 80 is closely attached to the fixed shaft 10 so that the rotation of the connecting shaft 40 can be suppressed to a certain extent.

The connection member 50 is coupled to the inside of the support rod 100 to transmit rotational force generated during the ascending and descending of the roll sill 120 to the first elastic portion 30 and the connection shaft 40.

The connecting member 50 is provided with a fixing portion 51 which is fixed to the supporting rod 110 on the outer circumferential surface and a side surface of which is coupled with the first elastic portion 30 or the connecting shaft 40, (52) are formed.

Here, the fixing portion 51 is formed in the inside of the support bar 110 with the same structure as a general blind coupling structure.

The engaging portion 52 includes a fourth insertion groove 54 into which the first protrusion 34 and the third protrusion 42 are inserted and a second insertion groove 54 through which the first insertion groove 35 and the third insertion groove 42 are inserted, The fourth protrusion protrusion 53 and the fourth insertion groove 54 may be formed to correspond to the first protrusion protrusion 53 and the fourth protrusion protrusion 53 coupled to the first protrusion protrusion 43 and the fourth protrusion protrusion 53,

The second elastic part 60 formed on the outer circumferential surface of the first elastic part 30 is engaged.

The second elastic part 60 is coupled to the outer circumferential surface of the connection shaft 40 so as to be movable in the longitudinal direction and the first elastic part 30 is located inside the second elastic part 60. When the support shaft 110 rotates, And is made to expand and shorten the length with the elastic force.

The second elastic portion 60 includes a second connection portion 61 and a second spring 66.

Accordingly, the second connection portion 61 is formed with a second through-hole 62 for receiving the first elastic portion 30 and the connection shaft 40 therein, A second connecting portion 61 formed by a second protruding portion 63 and a second protruding protrusion 64 formed in an outward direction and a second inserting groove 65 in which the second protruding protrusion 64 is engaged, Wow

The second spring 66 is engaged with the second projection 63 of the second connection part 61 disposed on both sides of the second spring 66 and has elasticity by rotation.

That is, the second elastic part 60 has the same structure as the first elastic part 30, and the first elastic part 30 is located inside the second elastic part 60.

At this time, the connecting member 50 is engaged with the second elastic part 60.

The second projecting protrusions 62 and the second insertion grooves 65 of the second connecting portion 60 located on the rotating portion 20 side are rotatably supported on the connecting shaft 40. [ So that the rotational force can be transmitted.

The second elastic part 60 constructed as described above can be extended and shortened by being disposed along the longitudinal direction as the first elastic part 30.

6 to 8, the first elastic portion and the second elastic portion are operated as follows when the support rod is rotated.

When the support bar 110 rotates, the roll screen 120 moves up and down to adjust the desired position for light.

Accordingly, as shown in FIG. 6, the support rods 110 rotate as the roll sill 120 is lowered.

At this time, the support shaft 110 rotates to raise and lower the roll screen 120, the rotation unit 20 rotates together, and the second elastic members 60 of the second and third elastic members 60 are sequentially rotated The elastic force is applied.

Here, the connection shaft 40 of (4) is fixed to the fixed shaft 10 until a sufficient elastic force is applied to the above (2) and (3), and starts rotating when a certain elastic force is applied.

The second elastic part 60 moves along the longitudinal direction of the connection shaft 40 while being contracted and expanded by an elastic force and is coupled to the third insertion groove 43 so as to transmit rotational force.

When the connection shaft 40 is rotated, the first elastic portions 30 of the first and second elastic members 30 and 30 are sequentially rotated to apply an elastic force.

7, the second connection portion 61 is rotated by the support rod 110, and the elastic force is applied to the second spring 66 through compression or tension, and the connection shaft 40 In the longitudinal direction.

Therefore, the second elastic part 56 is compressed and reduced in length when rotated in the direction of (1), and the second elastic part 56 is expanded and elongated when rotated in the direction of (2).

At this time, the connection shaft 40 is brought into close contact with the fixed shaft 10, so that rotation of the connection shaft 40 is suppressed until sufficient elastic force is applied to the second elastic portion 60 by the engaging force.

As shown in FIG. 8, when a sufficient elastic force is applied to the second spring 66, the fixing shaft 10 rotates, and the elasticity of the first elastic part 30 is applied through compression or tension .

Accordingly, the first elastic part 36 is compressed and reduced in length when rotated in the direction of (1), and the first elastic part 36 is expanded and elongated when rotated in the direction of (2).

In addition, when the elastic force is applied to the second spring 66 and the first spring 36, the circumference is changed.

Accordingly, when the roll screen 120 is lowered by the rotation of the support bar 110, elastic force is sequentially applied to the second elastic part 60 and the first elastic part 30 to prevent the rotation of the roll screen 120.

As shown in FIGS. 7 and 8, the first, second, third, fourth and fifth protrusions 34, 64, and the first, second, third, fourth and fifth insertion grooves It is preferable that a concave portion is formed at the end of the recessed portion so as to allow a pierced portion to be inserted,

5, when the support rod 110 rotates, the second resilient part 60 is rotated by the rotation of the support rod 110, And is rotated by the applied elastic force to smoothly rotate.

Then, after the rotation is performed by the second elastic part 60, the elastic force of the first elastic part 30 rotates to smoothly rotate the support rod 110 to raise the roll screen 120.

Accordingly, when the roll screen 120 is moved up and down by the elastic force applied at the time of lowering, it can naturally rise with little force through the elastic force applied to the second elastic portion 60 and the first elastic portion 30.

As described above, the second elastic portion 60 and the first elastic portion 30 are made of a double material, and are sequentially assisted by the elastic force to assist the user. The second elastic portion 60 and the first elastic portion 30 can be easily operated by the user. Can be installed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. It is obvious that you can do it.

10: fixed shaft 11: fixing groove
20: rotation part 30: first elastic part
31: first connecting portion 32: first through hole
33: first protrusion 34: first protrusion
35: first insertion groove 36: first spring
40: connecting shaft 41: third through groove
42: third protruding projection 43: third insertion groove
50: connecting member 51:
52: engaging portion 53: fourth projecting projection
54: fourth insertion groove 60: second elastic portion
61: second connecting portion 62: second through groove
63: second projection 64: second projection
65: second insertion groove 66: second spring
70: blocking plate 80: coupling member
100: Fixing bracket 110: Supporting rod
120: Roll screen

Claims (6)

And a support bar (110) rotatably engaged with the roll sill (120) wound up by the operation of the operation bar inside the fixing bracket (100) positioned on both sides so as to be fixed to the wall surface As a result,
A stationary shaft 10 coupled to the stationary bracket 100 to be positioned inside the support rod 110;
A rotation part 20 which is in close contact with the stationary bracket 100 and is rotatably coupled to the stationary shaft 10 to support the support rod 110;
A first elastic part 30 coupled to the rotation part 20 to be positioned inside the support rod 110 and capable of generating an elastic force by rotation of the support rod 110 and being shortened and extended in the longitudinal direction;
A connecting shaft (40) coupled to the first elastic part (30) and rotatably installed on the fixed shaft (10);
And a connection member 50 coupled to the inside of the support rod 100 to transmit a rotational force generated when the roll sill 120 is lifted and lowered to the first elastic portion 30 and the connection shaft 40 And the roll blind.
The method according to claim 1,
The first elastic part (30)
A first protrusion 33 protruding inward and a first protrusion 33 protruding from the first protrusion 33 are formed on both sides of the fixed shaft 10, And a first connection portion 31 which can be coupled to each other by forming a first insertion groove 35 to which the first projection protrusion 34 is coupled,
And a first spring (36) having both ends connected to the first projecting portions (33) of the first connection portions (31) disposed on both sides and having an elastic force by rotation.
The method according to claim 1,
The first elastic part 30 is coupled to the outer circumferential surface of the connection shaft 40 so as to be movable in the longitudinal direction. The first elastic part 30 is located inside and is contracted and expanded by the rotation of the support rod 110, And a second elastic part (60) which can be shortened and extended to the second elastic part (60).
The method of claim 3,
The second elastic portion (60)
A second protrusion 63 protruding inward from the first protrusion 63 and a second protrusion 63 protruding inward from the first protrusion 63 are formed on both sides of the first protrusion 63 and the connecting shaft 40, A second connection portion 61 formed by a second protrusion protrusion 64 formed in the first protrusion protrusion 64 and a second insertion slot 65 in which the second protrusion protrusion 64 is engaged,
And a second spring (66) having both ends connected to the second projecting portions (63) of the second connecting portions (61) disposed on both sides and having an elastic force by rotation.
The method according to claim 1,
The second elastic part 60 and the connection shaft 40 are prevented from being separated from the first elastic part 30 and the second elastic part 60 and the connection shaft 40 is interfered with, And a blocking plate (70) for preventing the roll blind from being formed.
The method according to claim 1,
A friction force is applied to the fixing shaft 10 so that the first elastic portion 30 and the second elastic portion 60 sequentially apply an elastic force when the support rod 110 rotates, Wherein the engaging member (80) is in close contact with the outer circumferential surface of the roll blind.

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