KR20120034883A - The roll screen for a multistage reduction device - Google Patents

The roll screen for a multistage reduction device Download PDF

Info

Publication number
KR20120034883A
KR20120034883A KR1020100096245A KR20100096245A KR20120034883A KR 20120034883 A KR20120034883 A KR 20120034883A KR 1020100096245 A KR1020100096245 A KR 1020100096245A KR 20100096245 A KR20100096245 A KR 20100096245A KR 20120034883 A KR20120034883 A KR 20120034883A
Authority
KR
South Korea
Prior art keywords
deceleration
port
primary
roll screen
drum tube
Prior art date
Application number
KR1020100096245A
Other languages
Korean (ko)
Inventor
금중식
Original Assignee
금중식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 금중식 filed Critical 금중식
Priority to KR1020100096245A priority Critical patent/KR20120034883A/en
Publication of KR20120034883A publication Critical patent/KR20120034883A/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/484—Torsion springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/706—Shafts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/422—Physical or chemical protection against vibration or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

PURPOSE: A multi-stage speed reduction device for a roll screen is provided to reduce rotation speed of a take-up pipe in multi-stage with a primary decelerator, a secondary oil decelerator, and multiple deceleration delay timer, thereby preventing noise and using safely. CONSTITUTION: A multi-stage speed reduction device(100) for a roll screen includes a drum pipe(102), a primary decelerator(103), a deceleration spring(106), a secondary oil decelerator(104), multiple deceleration delay timers(105a,105b,105c,105d). The drum pipe is accommodated in one side of a take-up pipe to be attached. The primary decelerator is inserted in the front inner surface of the drum pipe. The deceleration spring is rolled on the primary decelerator. The secondary oil decelerator is inserted in the rear inner side of the drum pipe and filled with oil. The deceleration delay timers are connected between the primary decelerator and the secondary oil decelerator.

Description

The roll screen for a multistage reduction device}

The present invention relates to a deceleration device that is operated only when the roll screen is rolled up and is not operated when the roll screen is lowered. More specifically, when the roll screen wound around the take-up tube is rolled up, the drum accommodated in the take-up tube The primary deceleration is performed by the primary deceleration port on the inner surface of the pipe, and the secondary deceleration is performed by the secondary oil deceleration port on the rear surface of the drum tube. The roll screen is to reduce the winding speed to the upper side, the use of the safety screen as well as to prevent the noise to provide a multi-stage reduction device of the roll screen to create a quiet and comfortable indoor environment.

Conventionally, when the roll screen is rolled up, the roll screen is wound up instantaneously according to the degree of elasticity of the torsion spring accommodated inside one side of the take-up pipe, which not only surprises the user but also generates severe noise.

For example, when the roll screen is wound on the winding tube in which the drum tube is accommodated, it is wound by the elastic force of the torsion spring under torsional pressure. As the roll screen is wound on the winding tube, it is accelerated and wound at a higher speed. As a result of this acceleration, the handle bar at the bottom of the roll screen hits the case for accommodating the take-up pipe, thereby causing severe noise.

Therefore, as an example of a roll screen reduction device for solving this problem, patent registration No. 909039 (hereinafter referred to as "pre-registration patent") has been pre-registered by the person.

The pre-registered patent is a rotating shaft is installed inside the upper housing frame, a torsion spring is installed with a support rod inside the rotating shaft is given an elastic force by the torsional compression of the torsion spring to the rotating shaft, and the rotating shaft coincides with the inner diameter of the rotating shaft The decelerating rotating body having a diameter of which is inserted is fixed to one end of the supporting rod, and a spring support is placed between the decelerating rotating body and the torsion spring wound around the supporting rod, and the coupling groove and the inner diameter of the rotating shaft of the decelerating rotating body and the spring supporting body are rotated. The rotational speed of the rotating shaft reversely rotated by the elastic force of the torsion spring while engaging the engaging projection of the structure is configured to be decelerated by the deceleration rotating body.

However, the pre-registered patent is to decelerate the rotational speed of the rotating shaft which is reversely rotated by the elastic force of the torsion spring through the deceleration rotating body to decelerate for a certain period when the roll screen is rolled up. The assembly is a method in which a plurality of gears (acceleration gears, one-way gears, cam gears, etc.), ratcheting means and one-way spool are intricately related to each other in the deceleration rotor. In addition, since the size of the reduction rotor accommodated in the narrow space inside the rotating shaft is subject to many restrictions, it is not easy to assemble complex parts on the reduction rotor that is limited in size as described above. In addition, there was an uneconomical closure, which was expensive to manufacture, and the failure rate was increased due to the complexity of the structure. Oh, there are various problems such as further and more frequent repairs did not last long life.

And the deceleration device assembly as described above has a problem that the deceleration performance is lowered because the deceleration stage is operated in one end, that is, only depends on the end operation of the deceleration rotating body.

The present invention has been made to solve the problems that have not been solved in the prior art reduction device and the applicant's prior registered patent as described above, for example, the first reduction gear in the inner surface of the front and rear drum tube accommodated in the take-up pipe and 2 A plurality of deceleration delay timers organically coupled to the primary oil reduction gear reduce the rotational speed of the take-up pipe to the first and second stages, that is, the multi-stage. The purpose of the present invention is to provide a roll screen multi-stage reduction device that can be rolled up smoothly during the section, and its use is safe as well as noise is prevented to create a quiet and comfortable indoor environment.

The present invention for achieving the above object is a drum tube accommodated in close contact with the other side of the take-up pipe; A primary deceleration port inserted into the front inner surface of the drum tube; A deceleration spring wound around the primary deceleration port; A second oil reduction port inserted into the rear inner surface of the drum tube and filled with an oil having a viscous substance therein; A plurality of deceleration delay timers connected between the primary deceleration port and the secondary oil deceleration port; It is characterized in that the multi-stage reduction device is made.

And the connecting shaft is integrated in both sides of the primary deceleration port, one connecting shaft is accommodated in one side of the take-up pipe is connected to the shaft in which the torsion spring is long wound in the longitudinal direction, the other connecting shaft is passed through the spacer spacer deceleration delay One end of the timer is connected to the deceleration delay timer, and the other end of the deceleration delay timer is connected to the connecting shaft of the secondary oil reduction port passing through the connecting shaft of the cylinder, and the secondary oil reduction port is connected to the inside of the drum tube by the fixed spacer. The drum tube accommodated inside the cylinder accommodated in close contact with the decelerating part is closed at the other end thereof with a closing cap.

And the deceleration spring wound around the outer diameter of the primary deceleration port is projected to the locking projection on one side, the locking projection is caught in the locking groove in the front of the drum tube, the outer diameter of the primary deceleration port and the outer diameter of the primary deceleration port The inner diameter ratio of the reduction spring is 1: 1.

The deceleration spring wound around the outer diameter of the primary deceleration port is characterized in that the deceleration is further delayed as it is wound in the longitudinal direction of the primary deceleration port.

The plurality of deceleration delay timers are connected to the engaging projections which are symmetrical with the front and rear sides, and the deceleration delay timers on both sides of the deceleration delay timers are not connected, but only connected, and the deceleration delay timer at the center faces the engaging projections. Rotate when hitting.

In addition, the O-ring is placed in the gap between the connecting shaft of the cylinder and the connecting shaft of the secondary oil reduction port so that the oil, which is a viscous material filled therein, does not leak to the deceleration delay timer.

As described above, when the roll screen is rolled up, the plurality of organically coupled with the primary deceleration port and the secondary oil deceleration port of the front and rear inner surfaces of the drum tube accommodated inside the winding tube on which the roll screen is rolled up. By decelerating the rotational speed of the take-up pipe to 1, 2, or multi-stage through two deceleration delay timers, the deceleration performance is further improved than that of the conventional deceleration device. At the same time, the secondary oil is reduced by the secondary oil reduction port on the inner surface of the rear of the drum tube, and the rotation speed of the winding tube in which the drum tube is accommodated is greatly reduced. It is rolled up smoothly throughout the whole section wound around this winding pipe, so it is safer to use and quiet. It has the largest effect of being able to raise.

1 is an exploded perspective view showing the overall configuration of the multi-stage reduction apparatus according to the present invention
Figure 2 is a cross-sectional configuration of the coupling state showing the overall configuration of the multi-stage reduction apparatus according to the present invention
3 is a cross-sectional view schematically showing an embodiment of a multistage reduction apparatus according to the present invention.

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

First, the terms or words used in the detailed description and claims of the present invention are not limited to the ordinary or dictionary meanings, and the inventors appropriately describe the concept of terms in order to explain their own invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention on the basis of the principle that it can be defined so, the configuration shown in the following embodiments and drawings described in the specification of the present invention is the most preferred one of the present invention Since it is only an example and does not represent all of the technical idea of the present invention, it will be apparent that there may be various equivalents and modifications that may replace them at the time of filing the present invention.

1 to 2 is a view showing the overall configuration of the multi-stage reduction apparatus according to the present invention.

A drum tube 102 accommodated in close contact with the other side of the winding tube 101; A primary deceleration port 103 inserted into the front inner surface of the drum tube 102; A deceleration spring (106) wound around the primary deceleration port (103); A secondary oil reduction port 104 inserted into a rear inner surface of the drum tube 102 and filled with an oil having a viscous material therein; A plurality of deceleration delay timers 105a, 105b, 105c, and 105d connected between the primary reduction port 103 and the secondary oil reduction port 104; In the multi-stage reduction apparatus 100 made,

The connecting shaft 103a and 103b are integrated in both sides of the primary deceleration port 103 so that the connecting shaft 103a is accommodated in one side of the winding pipe 101 so that the torsion spring 106 is longitudinally inclined. It is connected to the long winding shaft 107, the other connecting shaft 103b is penetrated through the gap spacer 108 and connected to one of the deceleration delay timers 105a of the deceleration delay timers 105a, 105b, 105c, and 105d. , The other end of the deceleration delay timer 105d is connected to the connecting shaft 104a of the secondary oil reduction port 104 passing through the connecting shaft 109a of the cylinder 109, and the secondary oil reduction port 104 described above. ) Is fixedly accommodated in the cylinder 109 that is received in close contact with the other side of the drum tube 102 by the fixed spacer 110, the drum tube 102, the other end is the closing cap 111 is the closing cap 111 It is a composition that ends with).

In addition, the deceleration spring 106 wound around the outer diameter of the primary deceleration port 103 has a locking protrusion 112 protruding from one side thereof, and the locking protrusion 112 has a locking groove 113 inside the front of the drum tube 102. The ratio between the outer diameter of the primary deceleration port 103 and the deceleration spring 106 wound around the outer diameter of the primary deceleration port 103 is 1: 1.

In addition, the deceleration spring 106 wound around the outer diameter of the primary deceleration port 103 has a configuration in which the deceleration is further delayed as it is wound longer in the longitudinal direction of the primary deceleration port 103.

In addition, the plurality of deceleration delay timers 105a, 105b, 105c, and 105d are connected to engagement protrusions 114 which are symmetrical with the front and rear sides, and the deceleration delays of both sides of the deceleration delay timers 105a, 105b, 105c, and 105d are provided. The timers 105a and 105d are not rotated but merely connected, and the central deceleration delay timers 105b and 105c are rotated when the engagement protrusions 114 meet.

The O-ring 115 is placed in the gap between the connecting shaft 109a of the cylinder 109 and the connecting shaft 104a of the secondary oil reduction port 104 passing through the connecting shaft 109a. The oil which is a viscous substance does not leak to the deceleration delay timers 105a, 105b, 105c, and 105d.

Unexplained reference numeral 116 in the drawing is a coupling frame formed on the outer periphery of the drum tube 102, 117a, 117b are both ends of the winding tube 101, the closing cap 111 of the other end of the drum tube 102 The fixing bracket 118 attached to and fixed to the roll screen is wound around the take-up pipe 101.

In the present invention configured as described above, the roll screen 118 is fixed to a window frame or a door frame (not shown) through the fixing brackets 117a and 117b as shown in FIG. 3.

When the roll screen 118 is fixed to the window frame or the door frame as described above, pulling the handle bar (not shown) integrated at the bottom of the roll screen 118 downward, the roll screen 118 is the winding pipe 101 The winding tube 101 is rotated in one direction by the elastic rotational force of the torsion spring 106 wound on the shaft 107 while being released while winning the elastic force of the torsion spring 106 accommodated inside one side of the same as a conventional speed reduction device. do.

When the winding pipe 101 rotates in one direction, the drum pipe 101 is also rotated in one direction, which is the drum tube 101 inside the other side of the winding pipe 101 through a coupling frame 116 formed on all sides of the outer circumference. Because of the combined rotation is made with the winding tube (101).

As described above, when the drum tube 102 rotates in one direction according to the one-way rotation of the winding tube 101, the first inner speed reduction 103 of the drum tube 102 is also rotated, in which the outer diameter of the primary reduction port 103 is rotated. The decelerating springs 106 wound around the first deceleration springs 103 do not rub against the outer diameter of the primary deceleration port 103, and thus serve as a one-way role. The inner diameter of the deceleration springs 106 is the outer diameter of the primary deceleration port 103. 1 to 1 ratio of the decelerating spring 106 when the decelerating spring 106 is engaged with the detent spring 112 because the detent spring 112 is engaged with the detenting groove 113 of the decelerating spring. As the inner diameter of the 106 is increased, the inner diameter of the primary deceleration port 103 is not rubbed, so that the cylinder 109 inside the other side of the drum tube 102 and the secondary oil reduction port 104 accommodated in the cylinder 109 are inside. At this time, the deceleration delay timer (105a, 105b, 105c, 105d) connecting the primary deceleration port (103) and the secondary oil deceleration port (104) is before and after Generated engaging projection 14 facing the hitting a one-way rotation of the primary speed reduction sphere 103 and the second oil old deceleration 104, the take-up tube 101 is wound in a direction opposite to the rotation will be written smoothly.

As such, when the roll bar 117 is completely pulled and the handle bar is fixed to the lower side of the case in which the roll screen is accommodated, the screen screen or the door frame is blocked to serve as a screen screen to block sunlight or block pests.

On the other hand, when opening the roll screen 118 while releasing the fixed state of the handle bar in the above state, the means for releasing the fixed handle bar can be used a variety of means, which is a technical feature of the present invention Rather, since the general technical information applied to the roll screen 118, a detailed description thereof will be omitted.

As described above, when the fixing state of the handle bar is released, the winding tube 101 is instantaneously rotated in the other direction by the return elastic force of the torsion spring 106 under torsional pressure, and the roll screen 118 is also wound on the winding tube 101. In this case, the drum tube 102 is also simultaneously rotated in the other direction, and accordingly, an obstacle of one side of the deceleration spring 106 wound around the outer diameter of the primary deceleration port 103 of the front inner surface of the drum tube 102 is caused. As the machine 112 is caught by the locking groove 113 of the inner surface of the drum tube 102, the deceleration spring 106 is compressed in the opposite direction as described above, so that the inner diameter of the deceleration spring 106 is gradually decreased. When the decelerating spring 106 is rotated while rubbing against the outer diameter of the primary deceleration port 103 and rotates, the deceleration delay timers 105a, 105b, 105c, and 105d are rotated before and after the primary deceleration is performed. When all the engaging projections 114 are formed, While the deceleration delay timers 105a, 105b, 105c, and 105d and the secondary oil reduction port 104 are stopped, only the drum tube 102, the reduction spring 106, and the cylinder 109 are rotated. The deceleration port 104 is stopped but serves to rotate together because the cylinder 109 in which the secondary oil reduction port 104 is accommodated rotates. In this case, the primary deceleration is performed through the deceleration spring 106. At the same time as the deceleration deceleration delay timer (105a, 105b, 105c, 105d) and the secondary oil reduction port 104 is stopped, the secondary deceleration through the cylinder 109 is made, and the secondary oil reduction port The oil, which is a viscous material inside the 104, significantly reduces the rotational speed of the cylinder 109 while significantly reducing the rotational speed of the winding tube 101 in which the drum tube 102 is accommodated and wound around the winding tube 101. The winding speed of the roll roll 118 upwards is greatly reduced.

100: multi-stage reduction device 101: winding pipe
102: drum tube 103: primary deceleration port
104: secondary oil reduction port 105a, 105b, 105c, 105d: deceleration delay timer
106: torsion spring 107: shaft
108: spacing spacer 109: cylinder
110: fixed spacer 111: closing cap
112: locking projection 113: locking groove
114: engaging projection 115: O ring

Claims (6)

A drum tube housed in close contact with the other side of the winding tube; A primary deceleration port inserted into the front inner surface of the drum tube; A deceleration spring wound around the primary deceleration port; A second oil reduction port inserted into the rear inner surface of the drum tube and filled with an oil having a viscous substance therein; A plurality of deceleration delay timers connected between the primary deceleration port and the secondary oil deceleration port; Multi-stage reducer of the roll screen, characterized in that the multi-stage reducer. The method of claim 1,
The primary deceleration port is connected to both sides of the coupling shaft is integrated into one side of the connecting shaft is accommodated in one side of the take-up pipe is connected to the shaft in which the torsion spring is long wound in the longitudinal direction, the other connecting shaft is passed through the interval spacer deceleration delay timer One end is connected to the deceleration delay timer, and the other end of the deceleration delay timer is connected to the connecting shaft of the secondary oil reduction port penetrating the connecting shaft of the cylinder, and the secondary oil reduction port is connected to the inside of the drum tube by the fixed spacer. The drum tube accommodated in the cylinder is in close contact, the drum tube is accommodated in the reduction member is the other end of the roll screen, characterized in that the finishing cap is closed. The method according to claim 1 or 2,
The deceleration spring wound around the outer diameter of the primary deceleration port is projected by a locking projection on one side, the locking projection is caught in the locking groove in the front of the drum tube, the deceleration wound on the outer diameter of the primary deceleration port and the outer diameter of the primary deceleration port. Multi-stage reduction device for roll screen, characterized in that the ratio of the inner diameter of the spring is 1: 1. 4. The method according to any one of claims 1 to 3,
The deceleration spring wound around the outer diameter of the primary deceleration port is a multi-stage reduction device of the roll screen, characterized in that the deceleration is further delayed as the longer winding in the longitudinal direction of the primary deceleration port. The method of claim 1,
The plurality of deceleration delay timers are connected to the engaging projections which are symmetrical to the front and rear, and the deceleration delay timers on both sides of the deceleration delay timers are not rotated, but only connected, and the deceleration delay timers of the center face each other. Multi-stage reduction gear of the roll screen, characterized in that when rotated. The method of claim 1,
The O-ring is placed in the gap between the connecting shaft of the cylinder and the secondary oil reduction port penetrating the connecting shaft so that the oil, which is a viscous material filled therein, does not leak to the deceleration delay timer side.
KR1020100096245A 2010-10-04 2010-10-04 The roll screen for a multistage reduction device KR20120034883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100096245A KR20120034883A (en) 2010-10-04 2010-10-04 The roll screen for a multistage reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100096245A KR20120034883A (en) 2010-10-04 2010-10-04 The roll screen for a multistage reduction device

Publications (1)

Publication Number Publication Date
KR20120034883A true KR20120034883A (en) 2012-04-13

Family

ID=46136979

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100096245A KR20120034883A (en) 2010-10-04 2010-10-04 The roll screen for a multistage reduction device

Country Status (1)

Country Link
KR (1) KR20120034883A (en)

Similar Documents

Publication Publication Date Title
KR101098404B1 (en) The roll screen for a reduction device
AU2013357927B2 (en) Improved one cord blinds
US20160265272A1 (en) Blind body braking mechanism for non-cord window blind assembly
KR100909039B1 (en) A reduction gear of the roll type mosquito net
US8286685B2 (en) Limit mechanism of upper stop level and lower stop level for rolling door
KR200466831Y1 (en) The roll screen for a reduction device
KR101230243B1 (en) Auto-closing means for sliding door
KR101730776B1 (en) The roll screen for reduction device
KR20120034883A (en) The roll screen for a multistage reduction device
KR100938129B1 (en) Machine type door closer
KR20150014599A (en) Roll blind
JP2009215799A (en) Pull-in device of sliding door
KR200474523Y1 (en) The roll screen for a reduction device
KR101240361B1 (en) A stage setting of a rotation object for multistage reduction device
KR102173971B1 (en) Roll-type insect net with integration of reduction device
KR100471682B1 (en) hinge using inetia
JP2009243056A (en) Door closing blocking device for sliding door, and automatic door closing apparatus equipped with the same device
KR100773570B1 (en) A control device for roll screen
WO2019049223A1 (en) Braking device for automatic winding type screen device
KR20160007247A (en) Damper controller for sliding type automatic door
KR101163304B1 (en) Roll type Screen Speed Reduction Apparatus
KR101148370B1 (en) A oneway incense revolution slowdown device
JP3141738U (en) Winding brake device for mesh or planar screen
TWI608159B (en) Reeling device of roller door
KR20170000849U (en) The roll screen for a reduction device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application