KR102030677B1 - Roll screen device - Google Patents

Abstract

Insect screen device of the present invention is a roll case installed in the window frame or door frame; A rotating roll accommodated in the roll case and rotating; A handle case moving in a first direction approaching the roll case and in a second direction away from the roll case; One end is wound on the rotating roll, the other end is fixed to the handle case, the insect screen is drawn into the roll case or withdrawn from the inside of the roll case when the handle case is moved; A torsion spring provided inside the roll case and applying a torsional elastic force to the rotating roll to pull the handle case in the first direction; Adjusting cylinder for adjusting the torsional elastic force of the torsion spring applied to the rotary roll; It may include; a deceleration unit for generating a frictional force to resist the rotation of the rotary roll, and to reduce the rotational speed of the rotary roll to rotate by the torsional elastic force.

Description

Screening device with reduction unit {ROLL SCREEN DEVICE}

The present invention relates to an insect screen device installed in the door or window.

Insect screen is a component for preventing the infestation of the pest into the room may be installed outside the windows of the building, the door frame or window frame constituting the windows.

In order to open the door or window, a screening device provided with a rolling roll for winding or unwinding the screen can be installed in the door frame or window frame.

The rotating roll may be elastically rotatable so that the insect screen is automatically wound on the rotating roll or the insect screen released from the rotating roll is kept taut.

At the end of the insect repellent net wound on the rotary roll may be provided with a locking means for stopping the automatic winding of the insect repellent net at the handle and set position.

The insect screening device includes an adjusting means for adjusting the rotational speed of the rotating roll or the winding speed of the insect screen, a locking means caught by the locking means formed at the end of the insect screen, and a screen which is rapidly wound on the rotating roll when the locking means is released from the locking means. Prevention means may be provided.

Korean Laid-Open Patent Publication No. 2006-0115789 discloses a technique for adjusting the winding speed of a rotary roll by using a worm gear system having a worm wheel directly connected to the rotary roll. However, no other means for reducing the rotational speed of the rotary roll in the state in which the winding speed of the rotary roll is adjusted does not appear.

Korean Laid-Open Patent Publication No. 2006-0115789

The present invention is to provide a insect screen device that the insect screen can be rapidly reduced speed on the rotary roll.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

Insect screen device of the present invention is a roll case installed in the window frame or door frame; A rotating roll accommodated in the roll case and rotating; A handle case moving in a first direction approaching the roll case and in a second direction away from the roll case; One end is wound on the rotating roll, the other end is fixed to the handle case, the insect screen is drawn into the roll case or withdrawn from the inside of the roll case when the handle case is moved; A torsion spring provided inside the roll case and applying a torsional elastic force to the rotating roll to pull the handle case in the first direction; Adjusting cylinder for adjusting the torsional elastic force of the torsion spring applied to the rotary roll; It may include; a deceleration unit for generating a frictional force to resist the rotation of the rotary roll, and to reduce the rotational speed of the rotary roll to rotate by the torsional elastic force.

Even if the winding speed of the rotary roll is adjusted slowly by using the adjustment cylinder, when the locked state of the expanded insect screen is released, the insect screen can be rapidly wound on the rotary roll by the elastic force.

According to the present invention having a deceleration unit, various problems due to the phenomenon that the insect screen is wound on the rotary roll at a rapid speed can be prevented.

According to the present invention, the reduction unit may be formed of only three parts including a pressure spring for tightening the outer circumferential surface of the rotary roll cylinder, an adjustment screw for adjusting the tightening force of the pressure spring, and a nut linked to the pressure spring and the adjustment screw. Thus, a reduction unit with less fixed occurrence, easy maintenance and high productivity can be provided.

The lack of only three parts can be supplemented by a roll cover and a rotating roll cylinder. For the normal functioning of the reduction unit, a housing in which three parts are installed is required. Since the insect screen device of the present invention uses a roll cover and a rotating roll cylinder as a housing, an additional housing is not required.

1 is a perspective view showing a screen screen device of the present invention.
2 is an exploded perspective view showing the insect screen of the present invention.
3 is a schematic view showing a reduction unit installed on a second roll cover.
4 is a schematic view showing a second roll cover and a reduction unit.
5 is a schematic view showing the operation of the deceleration unit.
6 and 7 are schematic views showing a rotary roll cylinder installed on the second roll cover.
8 is a schematic view showing an installation state of a reduction unit for a rotating roll cylinder.
9 is a side view of the rotary roll cylinder.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. Definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view showing the insect screen device of the present invention, Figure 2 is an exploded perspective view showing the insect screen device of the present invention.

The insect screen device shown in the drawing may include a roll case 10, a rail case 30, a handle case 50.

Roll case 10 or rail case 30 may be installed in the window frame or doors. The roll case 10 may be formed in a hollow pipe shape.

The roll case 10 may be installed at the upper end of the window frame or the door frame. The roll case 10 may extend horizontally to the ground. In the roll case 10, a rotation roll 110 in which the insect screen 90 is elastically wound, and a rotation member for rotating the rotation roll 110 with respect to the roll case 10 may be installed.

The rotary roll 110 may be accommodated in the roll case 10 and rotated. For example, the rotary roll 110 may be rotatably installed in the hollow of the roll case 10.

The rotating member may include a torsion spring 130 that provides an elastic force for rotating the rotary roll 110 with respect to the roll case 10, and a shaft rod 150 that supports the torsion spring 130. The torsion spring 130 may be wound on the outer side of the shaft 150. When the rotary roll 110 is formed in a hollow pipe shape, the shaft rod 150 and the torsion spring 130 may be installed in the hollow of the rotary roll 110.

The torsion spring 130 may be provided inside the roll case 10 and may apply a torsional elastic force to the rotation roll 110 with respect to the roll case 10. The shaft rod 150 may be connected to the torsion spring 130 that is installed separately from the rotary roll 110 and increases or decreases the winding speed of the rotary roll 110.

The hollow of the roll case 10 is connected to the shaft rod 150, the adjustment cylinder 200 for adjusting the torsional elastic force of the torsion spring 130 applied to the rotary roll 110 may be installed. Depending on the torsional elastic force of the torsion spring 130 applied to the rotary roll 110, the rotational speed of the rotary roll 110 or the winding speed of the insect repellent screen 90 is wound on the rotary roll 110 may be determined.

One end of the torsion spring 130 may be connected to the rotary roll (110). For example, one end of the torsion spring 130 may be fixed to the rotating part 140 inserted into the hollow of the rotating roll 110. The rotating unit 140 may rotate together with the rotating roll 110. Accordingly, one end of the torsion spring 130 connected to the rotating unit 140 may rotate together with the rotating roll 110.

The other end of the torsion spring 130 may be connected to the shaft 150 or the adjustment cylinder 200. Accordingly, the other end of the torsion spring 130 connected to the adjustment cylinder 200 may rotate together with the adjustment cylinder 200. The adjusting cylinder 200 is installed coaxially with the shaft rod 150, and may be rotatably installed with respect to the rotating unit 140 or the rotating roll 110.

The adjusting cylinder 200 may be formed with a first engagement portion 210 exposed to the outside. When the first engagement portion 210 is turned by using a first tool such as a driver, the torsion spring force of the torsion spring 130 may be adjusted while the adjustment cylinder 200 and the torsion spring 130 are rotated together.

The first engagement portion 210 may be formed coaxially with the shaft rod 150 and the torsion spring 130. According to the first engagement portion 210 formed coaxially with the torsion spring 130, the torsion elastic force may be adjusted while the other end of the torsion spring 130 is rotated at the same rotation speed as the rotation speed of the first tool.

One side of the adjustment cylinder 200 may be provided with a pawl (930) and ratchet (230) (ratchet) to allow only the forward rotation of the adjustment cylinder (200). At this time, the forward rotation may be the same as the direction of rotation of the rotary roll 110 winding the insect screen (90).

The pole 930 may be provided with a locker 931 (locker) exposed to the outside. By turning the rocker 931 using a second tool such as a screwdriver, the catch of the pawl 930 against the ratchet 230 is released, and the adjustment cylinder 200 can be rotated in the reverse direction.

In the rotating roll 110, the shaft portion 170 may be fastened to the side end of the adjustment cylinder 200. The shaft unit 170 may be rotatably installed in the adjustment cylinder 200. By the shaft portion 170, the adjustment cylinder 200 and the rotary roll 110 can be rotated independently of each other. Therefore, when the adjustment cylinder 200 is rotated in a state where the rotary roll 110 is stopped, the torsional elastic force of the torsion spring 130 may be adjusted.

The rail case 30 may be installed to be inclined to the roll case 10. For example, the rail case 30 may be installed at the left end and the right end of the window frame or the door frame, respectively. The rail case 30 extends inclined to the roll case 10, for example, vertically, and guides sliding of the handle case 50.

The handle case 50 is connected to an end of the insect screen 90, and may slide along the rail case 30. For example, a sliding part 700 sliding along a rail part formed in the rail case 30 may be provided at an end of the handle case 50.

The handle case 50 can move in a first direction 1 approaching toward the roll case 10 and in a second direction 2 away from the roll case 10. The torsion spring 130 may apply a torsional elastic force to the rotation roll 110 to pull the handle case 50 in the first direction ①. The first direction ① and the second direction ② may be parallel to the longitudinal direction of the rail case (30).

One end (upper end) of the insect screen 90 may be wound on the rotary roll (110). The other end (lower end) of the insect screen 90 may be fixed to the handle case 50. When the handle case 50 is moved, the insect screen 90 may be drawn into the roll case 10 or drawn out from the inside of the roll case 10. One side of the roll case 10 facing the handle case 50 may be formed with an entrance 19 through which the insect screen 90 enters and exits.

When the handle case 50 is pulled in the second direction ②, the handle case 50 may move in the second direction ② while overcoming the elastic force of the rotating member and the insect repellent mesh 90 wound around the rotary roll 110 is unfolded. The handle case 50 may extend parallel to the roll case 10 so that the insect screen 90 loosened from the rotary roll 110 is kept taut.

When the external force pulling the handle case 50 in the second direction ② is released, the insect screen 90 is rewound to the rotary roll 110 by the restoring force of the torsion spring 130 and guided to the rail case 30. The handle case 50 may linearly move along the first direction ①.

A locking unit may be provided in the handle case 50 such that the handle case 50 stops at the set position even when the external force pulling the handle case 50 in the second direction ② is released.

For example, the locking unit may include a manipulation button 610 exposed to the outside of the handle case 50 and a pair of locking rods 650 that are stretched by the manipulation button 610. The expansion and contraction of the locking rod 650 may be guided by sliding parts 700 installed at both ends of the handle case 50.

The pair of locking rods 650 may maintain an extended length due to the elastic bodies disposed therebetween. When the operation button 610 is operated, the total length of the pair of locking rods 650 may be reduced while overcoming the elastic force of the elastic body.

The rail case 30 may be provided with a locking part 510 that is caught by an end of the locking rod 650. An end portion of the pair of locking rods 650 having an extended length may protrude from the locking unit and be caught by the locking portion 510. For example, the locking part 510 may be integrally formed with the hook unit 500 covering the end of the rail case 30. The hook unit 500 installed on one rail case 30 and the hook unit 500 installed on the other rail case 30 may be symmetrically formed.

Even if the external force is released, the handle case 50 moved in the second direction ② may maintain a state where the locking rod 650 stops at a position that is locked to the locking portion 510. The position at which the locking rod 650 is caught by the locking part 510 may include a position at which the insect screen 90 wound around the rotation roll 110 is opened to close the window frame or the door frame.

When the operation button 610 is operated, the overall length of the pair of locking rods 650 is reduced, and the ends of the locking rods 650 protruding from the locking unit may enter the handle case 50. When the end of the locking rod 650 enters the handle case 50, the locked state of the locking rod 510 may be released. Due to the release of the locked state, the insect screen 90 is wound on the rotary roll 110, the handle case 50 may move along the first direction ① toward the roll case 10.

The insect repellent mesh 90 is wound around the rotary roll 110 by the restoring force of the torsion spring 130, the handle case 50 may collide with the roll case 10 while moving at a very high speed.

In order to prevent damage caused by the insect screen 90 being wound on the rotary roll 110 and to reduce the impact shock of the handle case 50 against the roll case 10, the roll case 10 of the rotary roll 110 A deceleration unit 300 for reducing the rotation speed may be provided.

For example, the reduction unit 300 may generate a frictional force that resists the rotation of the rotary roll 110, and may reduce the rotational speed of the rotary roll 110 to rotate by the torsional elastic force of the torsion spring 130.

A rotary roll cylinder 190 connected to the rotary roll 110 and rotating together with the rotary roll 110 may be provided. Rotary roll cylinder 190 may be installed on the opposite side of the control cylinder (200).

The reduction unit 300 may include a tightening unit 310 for pressing the rotary roll cylinder 190 and an adjusting unit 330 for adjusting the pressing force of the tightening unit 310. The rotational speed of the rotary roll cylinder 190 and the rotary roll 110 may be reduced by the pressing force of the tightening unit 310 adjusted by the adjusting unit 330. When the rotational speed of the rotary roll 110 is reduced, since the speed of the handle case 50 moving in the first direction ① is lowered, various problems due to the collision between the handle case 50 and the roll case 10 can be prevented. .

Both ends of the roll case 10 formed in a hollow pipe shape may be opened. In this case, the roll cover 900 may be provided to cover the opened both ends of the roll case 10.

Roll covers 900 installed at both ends of the roll case 10 may be coupled to the rail case 30, respectively.

In the roll case 10, a first roll cover 910 may be installed at an end of the control cylinder 200, and a second roll cover 920 may be installed at an end of the reduction unit 300.

The adjustment cylinder 200 may be rotatably installed on the first roll cover 910.

The rotary roll cylinder 190 connected to the rotary roll 110 may be rotatably installed on the second roll cover 920. The second roll cover 920 may be formed with a rotation shaft 929 which is a rotation center of the rotary roll cylinder 190.

The rotating shaft 929, the adjustment cylinder 200, the shaft 150, the torsion spring 130, the rotating roll 110, the shaft portion 170, the rotating roll cylinder 190 formed on the second roll cover 920 are all It can be formed on the coaxial.

FIG. 3 is a schematic view showing the reduction unit 300 installed in the second roll cover 920, and FIG. 4 is a schematic view showing the second roll cover 920 and the reduction unit 300. 5 is a schematic diagram showing the operation of the deceleration unit 300.

The reduction unit 300 may be mounted on the second roll cover 920 covering the end of the roll case. The reduction unit 300 is not a means for adjusting the elastic force of the torsion spring 130 in which the elastic force is determined by the adjustment cylinder 200. The reduction unit 300 may be an element that additionally applies a friction force smaller than the elastic force of the torsion spring 130 to the rotary roll 110 to which the elastic force of the torsion spring 130 is applied.

Since an rugged rib structure is formed on the outer circumferential surface of the rotary roll 110 to fit the end of the insect screen 90, it is difficult to apply frictional resistance directly to the outer circumferential surface of the rotary roll 110. Instead, it is preferable to apply frictional resistance to the rotary roll cylinder 190 connected to the second roll cover 920 side end of the rotary roll 110 and rotates together with the rotary roll 110.

The reduction unit 300 may be provided with a tightening unit 310 for pressing the rotary roll cylinder 190, an adjusting unit 330 for adjusting the pressing force of the tightening unit 310 with respect to the rotary roll cylinder 190. Friction force that resists rotation of the rotary roll 110 may be determined by the pressing force of the tightening part 310. The friction force of the tightening part 310 may correspond to a bidirectional resistance force acting on both the forward rotation and the reverse rotation of the rotary roll 110.

For example, the reduction unit 300 has a ring-shaped pressure spring wound around the outer circumferential surface of the rotary roll cylinder 190 and tightening the outer circumferential surface of the rotary roll cylinder 190, and an adjustment screw for tightening the pressure spring with respect to the rotary roll cylinder 190. Can be prepared.

The pressing spring is an element corresponding to the tightening part 310, and may generate frictional force while being in line contact or surface contact with the outer circumferential surface of the rotary roll cylinder 190 having a circular cross section.

The adjusting screw is an element corresponding to the adjusting unit 330 and may be directly or indirectly linked to the pressure spring.

For example, one end of the pressing spring may be supported by the second roll cover 920. The other end of the pressure spring can be connected to the adjustment screw. The other end of the pressure spring connected to the adjustment screw can move along the longitudinal direction of the adjustment screw by the rotation of the adjustment screw.

For example, an adjustment hole through which the adjustment screw passes may be formed at the other end of the pressure spring. When the male screw is formed on the outer circumferential surface of the adjusting screw and the female screw is formed in the adjusting hole, the other end of the pressing spring may move toward one side of the adjusting screw or move toward the other side according to the rotation direction of the adjusting screw.

When the other end of the pressing spring moves in any one direction, the tightening force of the inner circumference of the pressing spring pressurizes the outer circumferential surface of the rotary roll cylinder 190 may be increased. At this time, the tightening force may resist the rotation of the rotary roll cylinder 190 and the rotary roll 110. 5, when the other end of the pressure spring moves toward the screw head 331 of the adjustment screw, the inner circumference of the pressure spring may be tightened and the outer circumferential surface of the rotary roll cylinder 190 fitted to the inner circumference of the pressure spring may be pressed.

It may be difficult to form an adjustment threaded female hole at the other end of the pressure spring.

The reduction unit 300 may be further provided with a link member 350 for guiding the flow of the tightening unit 310 by the adjusting unit 330 or connecting the tightening unit 310 and the adjusting unit 330. . For example, the link member 350 may include a nut fitted with an adjustment screw and having a female thread.

The nut may be physically in close contact with the other end of the pressing spring having one end supported by the second roll cover 920. The female member does not need to be formed at the other end of the pressure spring connected to the adjustment screw due to the link member 350. For example, it is sufficient that the other end of the pressure spring is provided with a hole in which female threads are excluded. The other end of the pressure spring fitted to the adjustment screw may be in a state in which it is not detachable from the adjustment screw and can slide along the longitudinal direction of the adjustment screw.

The other end of the pressure spring is in physical contact with the nut moving along the longitudinal direction of the adjustment screw and can be pushed by the nut to move along the longitudinal direction of the adjustment screw.

When the adjustment screw rotates, it is difficult if the nut fitted to the adjustment screw rotates together. If the nut rotates with the adjusting screw, the nut cannot move along the length of the adjusting screw.

Means for turning the adjustment screw in place and means for preventing rotation of the nut may be provided in the second roll cover 920.

The second roll cover 920 has an installation portion 921 for supporting one end of the pressure spring, a first guide portion 923 for guiding the rotation of the adjustment screw, and a nut for preventing the rotation of the nut. A second guide part 925 may be provided to guide the slide along the slide.

When the adjustment screw is rotated, the nut can move the other end of the pressing spring while sliding along the adjustment screw by the second guide portion 925.

For example, the installation part 921, the first guide part 923, and the second guide part 925 may be formed on one surface of the second roll cover 920 facing the rotary roll cylinder 190.

The installation unit 921 may protrude toward the rotary roll cylinder 190 from one surface of the second roll cover 920. One end of the pressing spring may be formed in a ring shape fitted to the protruding installation portion 921.

The first guide portion 923 may include a groove or a hole in which the adjustment screw is seated.

The second guide part 925 may include a bottom surface of the second roll cover 920 extending along the length direction of the adjusting screw. Alternatively, the second guide part 925 may include a wall protruding from the bottom surface of the second roll cover 920 and extending along the length direction of the adjusting screw.

The cross section of the nut may be formed in a polygonal shape so that the rotation is prevented by the second guide part 925 and slides along the second guide part 925. For example, the cross section of the nut illustrated in the drawing may be formed in a quadrangular shape as a whole.

The nut of the quadrangular cross section may have a first side, a second side, a third side, and a fourth side. The first surface may be a surface facing the second roll cover 920. The third surface may be a surface facing the rotary roll cylinder 190. The second and fourth surfaces may be surfaces connecting the first and third surfaces.

The first surface of the nut may be in close contact with the bottom surface of the second roll cover 920 corresponding to the second guide portion 925. The second side of the nut may be in close contact with the wall corresponding to the second guide portion 925.

The nut in close contact with the bottom surface and the wall of the second roll cover 920 may be constrained to rotate similarly to a spanner. The nut whose rotation is constrained by the second guide part 925 may not rotate together with the adjusting screw when the adjusting screw rotates, and may move along the longitudinal direction of the adjusting screw. In addition, the third side of the nut may be in close contact with the rotary roll cylinder 190, in which case the nut may be constrained to rotate by three sides.

The second roll cover 920 may be formed with a screw hole 928 facing the screw head 331 of the adjustment screw. The screw head 331 of the adjustment screw may be exposed to the outside through the screw hole 928 of the second roll cover 920. The user can rotate the screw head 331 of the adjustment screw exposed to the outside using a tool such as a screwdriver.

A washer 333 may be provided in the center of the adjusting screw such that the adjusting screw having the male screw is not detached from the second roll cover 920 while turning against the second roll cover 920.

Two receiving grooves 927 having a diameter larger than the diameter (outer diameter) of the adjusting screw and smaller than the diameter (outer diameter) of the washer 333 may be formed in the first guide part 923 so as to be spaced apart from each other.

The washer 333 may be installed between the two receiving grooves 927 so that the linear movement of the adjusting screw is restricted while allowing the rotational movement of the adjusting screw relative to the second roll cover 920. The washer 333 inserted between the two receiving grooves 927 is blocked by the partition wall 926 forming the receiving groove 927 and cannot move along the longitudinal direction of the adjusting screw. Thus, the adjustment screw installed in the first guide portion 923 can swing in place.

Due to the washer 333 installed between the two receiving grooves 927, the adjusting screw is rotatable with respect to the second roll cover 920, while not being detached from the second roll cover 920.

6 and 7 are schematic views illustrating the rotary roll cylinder 190 installed on the second roll cover 920.

The rotary roll cylinder 190 may be provided with a prevention part 191 covering the reduction unit 300 installed in the second roll cover 920. For example, the pressure spring, the adjustment screw, the nut installed on the second roll cover 920 may be exposed to the rotary roll cylinder 190. The prevention part 191 may prevent the deceleration unit 300 from being separated from the second roll cover 920. In detail, the prevention part 191 covers the pressure spring, the adjustment screw, and the nut installed on the second roll cover 920 in close contact, and prevents the separation of the pressure spring, the adjustment screw, and the nut.

On one surface of the second roll cover 920 facing the rotating roll 110, a rotating shaft 929 which becomes the rotation center of the rotation roll 110 or the rotation center of the rotation roll cylinder 190 may protrude.

8 is a schematic view showing the installation state of the reduction unit 300 with respect to the rotary roll cylinder 190, Figure 9 is a side view of the rotary roll cylinder 190.

The rotating roll cylinder 190 is in close contact with the reduction unit 300 seated on the second roll cover 920 and is inserted into the prevention unit 191, the rotating shaft 929 to prevent the deceleration of the reduction unit 300 193 may be provided. In this case, the reduction unit 300 seated on the second roll cover 920 may press the outer circumferential surface of the insertion unit 193 inserted into the rotation shaft 929.

The prevention unit 191, which is in close contact with the reduction unit 300 seated on the second roll cover 920 and prevents the separation of the reduction unit 300, may not limit the rotation of the rotary roll cylinder 190. It may be formed in a circular plate shape covering the 300. In this case, the insertion unit 193 may be formed in a protrusion shape protruding from the prevention unit 191. The insertion part 193 may protrude from the center of the prevention part 191.

At the end of the insertion part 193 protruding from the prevention part 191, a rotation groove 199 inserted into the rotation shaft 929 may be formed.

The pressure spring may be wound around the outer circumferential surface of the insert 193. The rotating shaft 929 may be disposed on the central axis of the pressing spring. The pressure spring may tighten the outer peripheral surface of the end portion of the insertion portion 193 into which the rotation groove 199 is fitted to the rotation shaft 929.

Insertion portion 193 tightened by the pressure spring is applied with a rotational resistance, the rotary roll cylinder 190, the rotary roll 110 to rotate with the insertion unit 193 also receives a rotational resistance to reduce the rotational speed Can be.

Although embodiments according to the present invention have been described above, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments of the present invention are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the following claims.

10 ... Roll Case 19 ... Exit
30 ... rail case 50 ... handle case
90 ... screen 110 ... rolling roll
130 ... torsion spring 140 ... rotation
150 ... shaft 170 ... shaft
190 ... Rotary roll cylinder 191
193.Insert 199 ... Rotating groove
200 ... Adjustment cylinder 210 ... First engagement part
230 Ratchet 300 Reduction Unit
310 ... tightening part 330 ... adjusting part
331 Screw head 333 Washer
350 ... Link member 500 ... Hook unit
510 ... Locking section 610 ... Operation button
650 ... locking rod 700 ... sliding part
900 ... roll cover 910 ... first roll cover
920 2nd roll cover 921 Mounting part
923 ... 1st guide part 925 ... 2nd guide part
926 Bulkhead 927 Receiving groove
928 screw hole 929 rotating shaft
930 ... Paul 931 ... Locker

Claims (12)

A roll case installed on the window frame or the door frame;
A rotating roll accommodated in the roll case and rotating;
A handle case moving in a first direction approaching the roll case and in a second direction away from the roll case;
One end is wound on the rotating roll, the other end is fixed to the handle case, the insect screen is drawn into the roll case or withdrawn from the inside of the roll case when the handle case is moved;
A torsion spring provided inside the roll case and applying a torsional elastic force to the rotating roll to pull the handle case in the first direction;
Adjusting cylinder for adjusting the torsional elastic force of the torsion spring applied to the rotary roll;
A deceleration unit for generating a frictional force that resists rotation of the rotary roll and slowing down the rotational speed of the rotary roll rotated by the torsional elastic force;
Including;
A rolling roll cylinder connected to the rotating roll and rotating together with the rotating roll, a roll cover installed at an end of the roll case is provided,
The deceleration unit includes a pressure spring, a nut, an adjustment screw,
The pressure spring is wound on the outer peripheral surface of the rotary roll cylinder,
The nut is physically in close contact with the other end of the pressing spring is supported on one end of the roll cover,
Insect screen device that the nut is fitted to the adjustment screw.
The method of claim 1,
Is provided with a rotary roll cylinder connected to the rotary roll and rotates with the rotary roll,
The deceleration unit includes a tightening part and an adjusting part,
The tightening portion presses the rotary roll cylinder,
The control unit is provided with a control unit for adjusting the pressing force of the tightening unit,
Insect screen device that the friction force that resists the rotation of the rotary roll by the pressing force of the tightening portion is determined.
The method of claim 1,
Is provided with a rotary roll cylinder connected to the rotary roll and rotates with the rotary roll,
The deceleration unit is provided with a pressure spring which is wound around the outer circumferential surface of the rotary roll cylinder, the adjustment screw for tightening the pressure spring against the rotary roll cylinder.
The method of claim 3,
A rolling roll cylinder connected to the rotating roll and rotating together with the rotating roll, a roll cover installed at an end of the roll case is provided,
One end of the pressure spring is supported by the roll cover,
The other end of the pressure spring is connected to the adjustment screw,
The other end of the pressure spring connected to the adjustment screw is moved along the longitudinal direction of the adjustment screw by the rotation of the adjustment screw,
When the other end of the pressure spring moves in any one direction, the screening device is increased the tightening force of the inner circumference of the pressure spring to press the outer peripheral surface of the rotary roll cylinder.
delete The method of claim 1,
The roll cover has an installation part for supporting one end of the pressure spring, a first guide part for guiding the rotation of the adjustment screw, and guides the nut to slide along the longitudinal direction of the adjustment screw while preventing rotation of the nut. A second guide part is provided,
When the adjusting screw is rotated, the nut is sliding along the adjusting screw by the second guide portion while moving the other end of the pressing spring screen.
The method of claim 1,
The screw head of the adjusting screw is exposed to the outside through the screw hole of the roll cover screen.
The method of claim 1,
The washer is provided in the center of the adjusting screw,
The roll cover is provided with a first guide portion for guiding the rotation of the adjustment screw,
The first guide portion is formed with two receiving grooves having a diameter larger than the diameter of the adjusting screw and smaller than the diameter of the washer,
Insect screen device is provided between the two receiving grooves, so that the linear movement of the adjusting screw is limited while allowing the rotational movement of the adjusting screw relative to the roll cover.
The method of claim 1,
Both ends of the roll case are opened,
A roll cover is provided to cover the open end of the roll case,
The deceleration unit is installed on the roll cover screen screen device.
The method of claim 9,
An end of the rotary roll is provided with a rotary roll cylinder,
The rotating roll cylinder is provided with a prevention unit for covering the reduction unit installed on the roll cover,
Insulation screen device for preventing the separation of the reduction unit with respect to the roll cover.
The method of claim 1,
A roll cover covering an end portion of the roll case is provided,
The reduction unit is seated on the roll cover,
On one surface of the roll cover facing the rotary roll is formed a protruding rotary shaft to be the center of rotation of the rotary roll,
An end of the rotary roll is provided with a rotary roll cylinder,
The rotating roll cylinder is provided with a preventing portion which is in close contact with the reduction unit seated on the roll cover and prevents the separation of the reduction unit, the insertion portion inserted into the rotating shaft,
The deceleration unit seated on the roll cover is a screen device for pressing the outer peripheral surface of the insertion portion inserted into the rotary shaft.
The method of claim 1,
A roll cover provided at an end of the roll case and having a rotating shaft protruding from the rotating roll;
The rotary roll cylinder is connected to the end of the rotary roll,
The rotating roll cylinder is provided with a preventing portion which is in close contact with the reduction unit seated on the roll cover and prevents the separation of the reduction unit, the insertion portion inserted into the rotating shaft,
The preventing portion is formed in a plate shape covering the reduction unit,
The insertion portion is formed in a protrusion shape protruding from the prevention portion,
At the end of the insertion portion protruding from the prevention portion is formed a rotary groove inserted into the rotation shaft,
The deceleration unit is provided with a pressure spring wound on the outer peripheral surface of the insertion portion,
The rotating shaft is disposed on the central axis of the pressing spring,
The pressure spring is a screen device for tightening the outer peripheral surface of the end portion of the insertion portion is fitted with the rotary groove on the rotating shaft.

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