WO2006059840A1 - Electric roll screen machine - Google Patents

Electric roll screen machine Download PDF

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Publication number
WO2006059840A1
WO2006059840A1 PCT/KR2005/003685 KR2005003685W WO2006059840A1 WO 2006059840 A1 WO2006059840 A1 WO 2006059840A1 KR 2005003685 W KR2005003685 W KR 2005003685W WO 2006059840 A1 WO2006059840 A1 WO 2006059840A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
motor
operating coil
roll screen
brake housing
Prior art date
Application number
PCT/KR2005/003685
Other languages
French (fr)
Inventor
Won Seo Park
Original Assignee
Technogate Co., Ltd.
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 Technogate Co., Ltd. filed Critical Technogate Co., Ltd.
Publication of WO2006059840A1 publication Critical patent/WO2006059840A1/en

Links

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
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions

Definitions

  • the present invention relates to a electric roll screen machine, and more particularly, to a elect ⁇ c roll screen machine having a preventing unit for preventing rotation of a curtain roller due to the weight of the curtain
  • a roll curtain d ⁇ ven by an electnc motor uses the electric motor to rotate a roller on which a screen or curtain is vertically wound/unwound and opened/closed Because this type of elect ⁇ c roll curtain is more convenient than manually-operated roll curtains, a variety of products are being developed
  • Fig 1 is an exploded perspective view of a conventional electric roll screen machine
  • the upper portion of the curtain 1 is insertedly fixed in a groove along the length of a cyhndncally-shaped rollei 2, and the curtain is wound around or unwound to descend from the roller 2
  • a cyhnd ⁇ cal motor built into a motor case 3 is installed inside the roller 2, and the rotating shaft of the motor is coupled to the roller 2, so that the latter rotates with a rotation of the motor
  • a connector 5 is interposed between one end of the motor case 3 and a fixed wall bracket 6 At the end of the roller 2 opposite the installed motor case 3 is another RO/KR 11.01.2006 connector 4 rotatably installed on a fixed wall bracket 7.
  • An object of the present invention is to provide a electric roll screen machine having a preventing unit that prevents rotation of the roller due to the weight of a curtain after a motor stops.
  • a electric roll screen machine using a motor to rotate a roller for opening and closing a curtain attached to the roller including: a bracket installed respectively on either end of the roller for rotatably supporting the roller on a wall; a motor case housed inside the roller and fixedly coupled to the bracket on one side of the roller; a motor fixedly housed inside the motor case and rotating by means of electricity; and a braking device having one end coupled to a rotating shaft of the motor and another end coupled to the roller, and RO/KR 11.01.2006 transmitting a rotating force of the motor to the roller, while offsetting a rotating force of the roller caused by a weight of the curtain.
  • the braking device includes: a brake housing of a cylindrical shape; an operating coil wound more than once in a cylindrical shape with a curved portion at either end thereof and disposed proximally to an inner wall of the brake housing, the operating coil having a radius reducing according to the rotation of the motor and expanding due to the rotating force of the roller caused by the weight of the curtain; a first transmitting device for transmitting the rotating force of the motor to the operating coil, reducing the radius of the operating coil, and rotating the operating coil; a second transmitting device coupled to the roller, for expanding the radius of the operating coil and providing friction between the operating coil and the inner wall of the brake housing according to the rotation of the roller, while transmitting a rotating force of the operating coil to the roller according to a rotation of the first transmitting device; and a coupling device for coupling the brake housing to the motor case.
  • the first transmitting device includes: a first round plate portion for inserting the rotating shaft of the motor through a central portion thereof; first arcuate portions formed to symmetrically extend from the central portion of the first round plate portion; and first stopper portions spaced apart from outer surfaces of the first arcuate portions and protrudingly installed for contacting the curved portions of the operating coil during a rotation thereof; and the second transmitting device includes: a coupling device for coupling to the roller; a rotating shaft of the coupling device installed in a center of the coupling device; a second round plate portion for inserting the rotating shaft of the coupling device through a central portion thereof; second arcuate portions formed to symmetrically extend RO/KR 11 01 2006 from the central portion of the second round plate portion, and second stopper portions spaced mward from outer surfaces of the second arcuate portions and protrudingly installed for contacting the curved portions dunng a rotation thereof, the second stopper portions being arranged between the first stopper portions inside the brake housing, a cylindrical portion of the operating
  • the inventive elect ⁇ c roll screen machine uses an operating sp ⁇ ng to prevent rotation of the curtain caused by the weight of the curtain, in order to allow the curtain to come to rest at a precise position desired by a user
  • Fig 1 is an exploded perspective view of a conventional electnc roll screen machine
  • Fig 2 is an exploded perspective view of the entire structure of a elect ⁇ c roll screen machine according to the present invention
  • Fig 3 is an exploded perspective view showing the assembly of a brake, motor case, motor, and motor cap according to one embodiment of the present invention
  • Fig 4 is a perspective view showing an assembled state of the components m Fig 3, and RO/KR 11.01.2006
  • Fig. 5 is a perspective view of components installed in a brake housing according to one embodiment of the present invention.
  • Fig. 2 is an exploded perspective view of the entire structure of a electric roll screen machine according to the present invention.
  • a motor case 40 housing a cylindrical motor is installed inside the roller 50, and attached at the front of the cylindrical motor is a motor cap through a motor shaft.
  • the roller 50 rotates when the motor cap rotates.
  • the motor case 40 is fixed to a drive bracket 30 that rotatably supports one end of the roller 50.
  • the drive bracket 30 is fixed to a ceiling-mounting plate 12 mounted on a ceiling by a hanger 31.
  • the other end of the roller 50 is rotatably supported by a support bracket 20 that is fixed to another ceiling- mounting plate 11 mounted on a ceiling by another hangar 21.
  • the top of the curtain is fixed to a curtain installation groove formed on the outer surface of the roller 50, and the curtain is wound and unwound according to the rotation of the roller 50.
  • Fig. 3 is an exploded perspective view showing the assembly of a brake, motor case, motor, and motor cap according to one embodiment of the present invention
  • Fig. 4 is a perspective view showing an assembled state of the components in Fig. 3.
  • the cylindrical motor 60 is fixedly inserted into a motor case 40, and a brake 90 and motor cap 70 are fixedly installed at the front end of the motor case 40.
  • the drive bracket 30 has an inner drum 32 and an outer drum 33 that is shorter than the inner drum 32, RO/KR 11.01.2006 and the rear end of the motor case 40 is inserted over a groove formed between the inner and outer drums 32 and 33 and fastened in place by a screw.
  • the motor case 40 are slots 41 formed along the length of the case for inserting and fixing a ridge 600 (formed along a longitudinal direction on a sealing cap 61) therein, preventing the motor 60 from moving when inserted in the motor case 40.
  • the brake 90 has an annular brake housing 900 that houses an inner stopper 800 and an outer stopper 500 installed in the brake housing 900 and an operating spring 700 installed between the inner and outer stoppers 800 and 500, and a fixing plate 400 to prevent the inner and outer stoppers 800 and 500 and the operating spring 700 projecting and dislodging from inside the brake housing 900.
  • the fixing plate 400 is formed of a cylindrical wall 402 and a round plate 403 bending vertically and radially inward toward the rotating shaft 63 to form a front end of the cylindrical wall 402 opposite the brake housing 900.
  • Inserting tabs 401 are formed to protrude longitudinally along the cylindrical wall 402 at a predetermined distance from one another for inserting into the slots 41 formed on the motor case 40.
  • the inner portions of the inserting tabs 401 have a respective screw hole 404. Screws 405 screw through the screw holes 405 of the fixing plate 400, the screw holes 901 of the brake housing 900, and the screw holes 701 of the motor cap 70 to connect the components in one unit.
  • the motor case 40 is fixed to the drive bracket 30.
  • the motor 60 is first installed RO/KR 11.01.2006 inside the motor case 40, and then the motor cap 70 and the brake 90 are coupled together with the screws 405, so that the inserting tabs 401 of the fixing plate 400 insert into the slots 41.
  • the rotating shaft 63 of the motor 60 inserts into an insertion hole of the outer stopper 500.
  • the outer stopper 500 forming the stopper portions turns forwards and backwards, and the stopper portions thereof press against the protruding ends of the operating spring 700 to contract the circumference of the operating spring 700 and turn the spring forwards and backwards, so that rotation occurs without any friction between the brake housing 900 and the operating spring 700.
  • the operating spring 700 presses against the stopper portions of the inner stopper 800 and rotates the inner stopper 800.
  • Formed at the center of the inner stopper 800 is an insertion hole 801 for inserting a connecting key 71.
  • the connecting key 71 is inserted into the insertion hole 801 and rotates according to the rotation of the inner stopper 800.
  • Also formed at the center of the rotating shaft 73 of the motor cap 70 is another insertion hole 74 for inserting the connecting key 71, so that the rotating shaft 73 rotates according to the rotation of the connecting key 71.
  • the rotating shaft 73 of the motor cap has the encoder 72 installed on its outer edge and the connecting head 80 attached to its front end. The motor cap rotating shaft 73, the connecting head 80, and the encoder 72 rotate according to the rotation of the connecting key 71.
  • the rotation of the rotating shaft 63 of the motor 60 causes the rotation in unison of the outer stopper 500, the operating spring 700, the inner stopper 800, the connecting key 71, the motor cap rotating shaft 73, and the connecting head 80 inside the brake 90.
  • RO/KR 11 01 2006 the fixing plate 400, the brake housing 900, and the motor cap housing 700 that act as a housing for the previous components, are fixed mside the motor case 40
  • the brake housing 900 has a cylindrical wall 902 and a round plate 903 curved from the end contacting the motor cap 70 of the cylindrical wall 902 radially towards the connecting key 71 and having a centrally- formed through-hole
  • the cylindrical wall 902 has screw holes for receiving screws 405 therein formed in a longitudinal direction along the wall
  • the inner stopper 800 includes a round plate portion 802 and symmetrical arcuate portions 803 and 804 extending radially from the middle of the round plate portion 802, stopper portions 805 and 806 formed to extend mward past the thickness of the operating spring 700 from along the outer edge of the arcuate portions 803 and 804
  • a cylindrical reinforcing portion 807 extends radially from the middle of the round plate portion 802, and an insertion hole 801 for inserting the connecting key 71 is formed centrally in the reinforcing portion 807
  • the outer surface of the reinforcing portion 807 is of a compound material, having a metal ⁇ ng pressed therein to reinforce the reinforcing portion
  • the outer stopper plate 500 is structurally the same as the inner stopping plate 800 A round plate portion 502, and symmetrical arcuate portions 503 and 504 extending radially from the middle of the round plate portion 502, stopper portions 505 and 506 formed to extend inward past the thickness of the operating spring 700 from along the outer edge of the arcuate portions 503 and 504
  • a cylindrical reinforcing portion 507 extends radially from the middle of the round plate portion 502, and an insertion hole for inserting the motor rotating shaft 63 is formed centrally in the reinforcing portion 507
  • the outer edge of the RO/KR 11.01.2006 reinforcing portion 507 is of a compound material, having a metal ring pressed therein to reinforce the reinforcing portion 507.
  • the operating spring 700 has a predetermined radius, is wound in one direction, and has both ends curved radially inward, forming curved portions 701 and 702.
  • Fig. 5 is a perspective view of components installed in a brake housing according to one embodiment of the present invention.
  • the inner cylindrical surface of the brake housing 900 has an inner stopper 800 pressed and installed against the round plate 903, and the operating spring 700 is installed between the outer surfaces of the stopper portions 805 and 806 of the inner stopper 800 and the inner cylinder of the brake housing 900.
  • the curved portions 701 and 702 of the operating spring 700 are disposed on either end of the stopper portion 805 of the inner stopper 800. Due to this layout, when the inner stopper 800 rotates, one of the curved portions 701 and 702 receives torque from the stopper portion 805, and the diameter of the operating spring 700 increases and creates friction between the operating spring 700 and the brake housing 900, preventing further rotation of the inner stopper 800.
  • the outer stopper 500 is installed so that the stopper portions 505 and 506 of the outer stopper 500 are disposed between the stopper portions of the inner stopper 800.
  • the stopper portions 505 and 506 rotate forwards and backwards, one side of the stopper portions 505 and 506 exerts torque on the curved portions 701 and 702 of the operating spring 700, reducing the diameter of the operating spring 700.
  • a metal ring 507 protrudes in the through-hole formed in the round plate 403 of the fixing plate 400, and a rotating shaft insertion hole 501 is disposed at the outer surface of the PCT7KR2005/003685
  • the rotating shaft 63 of the motor is inserted into the insertion hole 501.
  • the outer stopper 500 rotates, causing the diameter of the operating spring 700 to decrease so that it rotates without friction with the brake housing 900, and simultaneously rotates the inner stopper 800, which in turn, rotates the connecting head 80 and thus the roller 50.
  • the gravitational force pulling the curtain down rotates the roller 50, causing the connecting head 80 to rotate.
  • the inner stopper 800 rotates, enlarging the diameter of the operating spring 700 and creating friction between the operating spring 700 and the inner cylindrical surface of the brake housing 900. The friction prevents further rotation and stops the rotation of the roller 50, preventing lowering of the curtain 1 due to its weight.

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

Abstract

A electric roll screen machine is provided. During operation of the motor, the electric roll screen machine employs a roller that maintains an even rotation, and when the motor is stopped, a sliding preventing unit is employed to prevent the roller from rotating further due to the weight of the curtain. The electric roll screen machine includes brackets to rotatably mount both ends of the roller to a wall and support the roller, a motor case held inside the roller at a bracket on one end thereof, a motor held and attached inside the motor case and rotated by electricity, and a braking device attached at one end to a rotating shaft of the motor and coupled to the roller at the other end. The braking device transmits rotational force from the motor to the roller, but counters rotational force of the roller due to weight of the curtain.

Description

RO/KR 11 01 2006 ELECTRIC ROLL SCREEN MACHINE
Technical Field
The present invention relates to a electric roll screen machine, and more particularly, to a electπc roll screen machine having a preventing unit for preventing rotation of a curtain roller due to the weight of the curtain
Background Art
A roll curtain dπven by an electnc motor (including suede curtains, festoon curtains, and blinds) uses the electric motor to rotate a roller on which a screen or curtain is vertically wound/unwound and opened/closed Because this type of electπc roll curtain is more convenient than manually-operated roll curtains, a variety of products are being developed
An example of such development pertaining to an assembly-type electπc roll screen machine is disclosed in Korean Patent No 10-2004-7658, filed by the applicant of this invention, which is hereby incorporated by reference
Fig 1 is an exploded perspective view of a conventional electric roll screen machine
The upper portion of the curtain 1 is insertedly fixed in a groove along the length of a cyhndncally-shaped rollei 2, and the curtain is wound around or unwound to descend from the roller 2 Also, a cyhndπcal motor built into a motor case 3 is installed inside the roller 2, and the rotating shaft of the motor is coupled to the roller 2, so that the latter rotates with a rotation of the motor
Furthermore, a connector 5 is interposed between one end of the motor case 3 and a fixed wall bracket 6 At the end of the roller 2 opposite the installed motor case 3 is another RO/KR 11.01.2006 connector 4 rotatably installed on a fixed wall bracket 7.
In this type of electric roll screen machine, the rotation of the motor causes the upper portion of the curtain 1 fixed to the roller 2 to wind or unwind; and when the motor ceases rotating, the winding or unwinding of the curtain should also stop. However, even when the motor stops operating, the curtain 1 continues to unwind slightly due to its inherent weight. In the case of a heavy curtain, this slippage becomes more severe, causing a discrepancy between the actual resting position of the curtain and the curtain position desired by the user.
Technical Problem
An object of the present invention is to provide a electric roll screen machine having a preventing unit that prevents rotation of the roller due to the weight of a curtain after a motor stops.
Technical Solution
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a electric roll screen machine using a motor to rotate a roller for opening and closing a curtain attached to the roller, the electric roll screen machine including: a bracket installed respectively on either end of the roller for rotatably supporting the roller on a wall; a motor case housed inside the roller and fixedly coupled to the bracket on one side of the roller; a motor fixedly housed inside the motor case and rotating by means of electricity; and a braking device having one end coupled to a rotating shaft of the motor and another end coupled to the roller, and RO/KR 11.01.2006 transmitting a rotating force of the motor to the roller, while offsetting a rotating force of the roller caused by a weight of the curtain.
The braking device includes: a brake housing of a cylindrical shape; an operating coil wound more than once in a cylindrical shape with a curved portion at either end thereof and disposed proximally to an inner wall of the brake housing, the operating coil having a radius reducing according to the rotation of the motor and expanding due to the rotating force of the roller caused by the weight of the curtain; a first transmitting device for transmitting the rotating force of the motor to the operating coil, reducing the radius of the operating coil, and rotating the operating coil; a second transmitting device coupled to the roller, for expanding the radius of the operating coil and providing friction between the operating coil and the inner wall of the brake housing according to the rotation of the roller, while transmitting a rotating force of the operating coil to the roller according to a rotation of the first transmitting device; and a coupling device for coupling the brake housing to the motor case. The first transmitting device includes: a first round plate portion for inserting the rotating shaft of the motor through a central portion thereof; first arcuate portions formed to symmetrically extend from the central portion of the first round plate portion; and first stopper portions spaced apart from outer surfaces of the first arcuate portions and protrudingly installed for contacting the curved portions of the operating coil during a rotation thereof; and the second transmitting device includes: a coupling device for coupling to the roller; a rotating shaft of the coupling device installed in a center of the coupling device; a second round plate portion for inserting the rotating shaft of the coupling device through a central portion thereof; second arcuate portions formed to symmetrically extend RO/KR 11 01 2006 from the central portion of the second round plate portion, and second stopper portions spaced mward from outer surfaces of the second arcuate portions and protrudingly installed for contacting the curved portions dunng a rotation thereof, the second stopper portions being arranged between the first stopper portions inside the brake housing, a cylindrical portion of the operating coil being arranged between outer surfaces of the first and second stopper portions and an inner cylindrical surface of the brake housing
Advantageous Effects
The inventive electπc roll screen machine, without a separate driving device, uses an operating spπng to prevent rotation of the curtain caused by the weight of the curtain, in order to allow the curtain to come to rest at a precise position desired by a user
Description of Drawings
The spiπt of the present invention can be understood more fully with reference to the accompanying drawings In the drawings
Fig 1 is an exploded perspective view of a conventional electnc roll screen machine,
Fig 2 is an exploded perspective view of the entire structure of a electπc roll screen machine according to the present invention, Fig 3 is an exploded perspective view showing the assembly of a brake, motor case, motor, and motor cap according to one embodiment of the present invention,
Fig 4 is a perspective view showing an assembled state of the components m Fig 3, and RO/KR 11.01.2006
Fig. 5 is a perspective view of components installed in a brake housing according to one embodiment of the present invention.
Best Mode Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 2 is an exploded perspective view of the entire structure of a electric roll screen machine according to the present invention.
Referring to Fig. 2, a motor case 40 housing a cylindrical motor is installed inside the roller 50, and attached at the front of the cylindrical motor is a motor cap through a motor shaft. The roller 50 rotates when the motor cap rotates. The motor case 40 is fixed to a drive bracket 30 that rotatably supports one end of the roller 50. Also, the drive bracket 30 is fixed to a ceiling-mounting plate 12 mounted on a ceiling by a hanger 31. The other end of the roller 50 is rotatably supported by a support bracket 20 that is fixed to another ceiling- mounting plate 11 mounted on a ceiling by another hangar 21. The top of the curtain is fixed to a curtain installation groove formed on the outer surface of the roller 50, and the curtain is wound and unwound according to the rotation of the roller 50.
Fig. 3 is an exploded perspective view showing the assembly of a brake, motor case, motor, and motor cap according to one embodiment of the present invention; and Fig. 4 is a perspective view showing an assembled state of the components in Fig. 3.
The cylindrical motor 60 is fixedly inserted into a motor case 40, and a brake 90 and motor cap 70 are fixedly installed at the front end of the motor case 40. Also, the drive bracket 30 has an inner drum 32 and an outer drum 33 that is shorter than the inner drum 32, RO/KR 11.01.2006 and the rear end of the motor case 40 is inserted over a groove formed between the inner and outer drums 32 and 33 and fastened in place by a screw. Furthermore, at the front end of the motor case 40 are slots 41 formed along the length of the case for inserting and fixing a ridge 600 (formed along a longitudinal direction on a sealing cap 61) therein, preventing the motor 60 from moving when inserted in the motor case 40.
Also, the brake 90 has an annular brake housing 900 that houses an inner stopper 800 and an outer stopper 500 installed in the brake housing 900 and an operating spring 700 installed between the inner and outer stoppers 800 and 500, and a fixing plate 400 to prevent the inner and outer stoppers 800 and 500 and the operating spring 700 projecting and dislodging from inside the brake housing 900.
Additionally, installed on a rotating shaft 73 inside the motor cap 70 is an encoder 72 that senses the rotating speed of the motor. On the outer end of the motor cap 70 is a connecting portion (not shown) connected to a rotating case 50, and a connecting head 80 rotatably installed to the rotating shaft 73. The fixing plate 400 is formed of a cylindrical wall 402 and a round plate 403 bending vertically and radially inward toward the rotating shaft 63 to form a front end of the cylindrical wall 402 opposite the brake housing 900. Inserting tabs 401 are formed to protrude longitudinally along the cylindrical wall 402 at a predetermined distance from one another for inserting into the slots 41 formed on the motor case 40. The inner portions of the inserting tabs 401 have a respective screw hole 404. Screws 405 screw through the screw holes 405 of the fixing plate 400, the screw holes 901 of the brake housing 900, and the screw holes 701 of the motor cap 70 to connect the components in one unit.
The motor case 40 is fixed to the drive bracket 30. The motor 60 is first installed RO/KR 11.01.2006 inside the motor case 40, and then the motor cap 70 and the brake 90 are coupled together with the screws 405, so that the inserting tabs 401 of the fixing plate 400 insert into the slots 41. The rotating shaft 63 of the motor 60 inserts into an insertion hole of the outer stopper 500. When the rotating shaft 63 rotates forwards or backwards, the outer stopper 500 forming the stopper portions turns forwards and backwards, and the stopper portions thereof press against the protruding ends of the operating spring 700 to contract the circumference of the operating spring 700 and turn the spring forwards and backwards, so that rotation occurs without any friction between the brake housing 900 and the operating spring 700. When the protruding ends of the operating spring 700 are pressed against the stopper portions of the inner stopper 800 and the operating spring 700 is rotated forwards and backwards, the operating spring 700 presses against the stopper portions of the inner stopper 800 and rotates the inner stopper 800. Formed at the center of the inner stopper 800 is an insertion hole 801 for inserting a connecting key 71. The connecting key 71 is inserted into the insertion hole 801 and rotates according to the rotation of the inner stopper 800. Also formed at the center of the rotating shaft 73 of the motor cap 70 is another insertion hole 74 for inserting the connecting key 71, so that the rotating shaft 73 rotates according to the rotation of the connecting key 71. The rotating shaft 73 of the motor cap has the encoder 72 installed on its outer edge and the connecting head 80 attached to its front end. The motor cap rotating shaft 73, the connecting head 80, and the encoder 72 rotate according to the rotation of the connecting key 71.
The rotation of the rotating shaft 63 of the motor 60 causes the rotation in unison of the outer stopper 500, the operating spring 700, the inner stopper 800, the connecting key 71, the motor cap rotating shaft 73, and the connecting head 80 inside the brake 90. However, RO/KR 11 01 2006 the fixing plate 400, the brake housing 900, and the motor cap housing 700 that act as a housing for the previous components, are fixed mside the motor case 40
Furthermore, the brake housing 900 has a cylindrical wall 902 and a round plate 903 curved from the end contacting the motor cap 70 of the cylindrical wall 902 radially towards the connecting key 71 and having a centrally- formed through-hole The cylindrical wall 902 has screw holes for receiving screws 405 therein formed in a longitudinal direction along the wall
The inner stopper 800 includes a round plate portion 802 and symmetrical arcuate portions 803 and 804 extending radially from the middle of the round plate portion 802, stopper portions 805 and 806 formed to extend mward past the thickness of the operating spring 700 from along the outer edge of the arcuate portions 803 and 804 A cylindrical reinforcing portion 807 extends radially from the middle of the round plate portion 802, and an insertion hole 801 for inserting the connecting key 71 is formed centrally in the reinforcing portion 807 Also, the outer surface of the reinforcing portion 807 is of a compound material, having a metal πng pressed therein to reinforce the reinforcing portion
807
The outer stopper plate 500 is structurally the same as the inner stopping plate 800 A round plate portion 502, and symmetrical arcuate portions 503 and 504 extending radially from the middle of the round plate portion 502, stopper portions 505 and 506 formed to extend inward past the thickness of the operating spring 700 from along the outer edge of the arcuate portions 503 and 504 A cylindrical reinforcing portion 507 extends radially from the middle of the round plate portion 502, and an insertion hole for inserting the motor rotating shaft 63 is formed centrally in the reinforcing portion 507 Also, the outer edge of the RO/KR 11.01.2006 reinforcing portion 507 is of a compound material, having a metal ring pressed therein to reinforce the reinforcing portion 507.
The operating spring 700 has a predetermined radius, is wound in one direction, and has both ends curved radially inward, forming curved portions 701 and 702. Fig. 5 is a perspective view of components installed in a brake housing according to one embodiment of the present invention.
The inner cylindrical surface of the brake housing 900 has an inner stopper 800 pressed and installed against the round plate 903, and the operating spring 700 is installed between the outer surfaces of the stopper portions 805 and 806 of the inner stopper 800 and the inner cylinder of the brake housing 900. The curved portions 701 and 702 of the operating spring 700 are disposed on either end of the stopper portion 805 of the inner stopper 800. Due to this layout, when the inner stopper 800 rotates, one of the curved portions 701 and 702 receives torque from the stopper portion 805, and the diameter of the operating spring 700 increases and creates friction between the operating spring 700 and the brake housing 900, preventing further rotation of the inner stopper 800.
Furthermore, after the inner stopper 800 and the operating spring 700 inside the brake housing 900 are installed, the outer stopper 500 is installed so that the stopper portions 505 and 506 of the outer stopper 500 are disposed between the stopper portions of the inner stopper 800. When the stopper portions 505 and 506 rotate forwards and backwards, one side of the stopper portions 505 and 506 exerts torque on the curved portions 701 and 702 of the operating spring 700, reducing the diameter of the operating spring 700.
A metal ring 507 protrudes in the through-hole formed in the round plate 403 of the fixing plate 400, and a rotating shaft insertion hole 501 is disposed at the outer surface of the PCT7KR2005/003685
RO/KR ll.01.2Q06 fixing plate 400. The rotating shaft 63 of the motor is inserted into the insertion hole 501. When the rotating shaft 63 of the motor rotates, the outer stopper 500 rotates, causing the diameter of the operating spring 700 to decrease so that it rotates without friction with the brake housing 900, and simultaneously rotates the inner stopper 800, which in turn, rotates the connecting head 80 and thus the roller 50.
Should the motor be stopped, the gravitational force pulling the curtain down rotates the roller 50, causing the connecting head 80 to rotate. When the connecting head 80 rotates, the inner stopper 800 rotates, enlarging the diameter of the operating spring 700 and creating friction between the operating spring 700 and the inner cylindrical surface of the brake housing 900. The friction prevents further rotation and stops the rotation of the roller 50, preventing lowering of the curtain 1 due to its weight.
10

Claims

PCT/KR2005/003685
RO/KR 11 01 2006
Claims
1 A electric roll screen machine using a motor to rotate a roller for opening and closing a curtain attached to the roller, the electric roll screen machine comprising a bracket installed respectively on either end of the roller for rotatably supporting the roller on a wall, a motor case housed inside the roller and fixedly coupled to the bracket on one side of the roller, a motor fixedly received inside the motor case and rotating by means of electricity, and a braking device having one end coupled to a rotating shaft of the motor and another end coupled to the roller, and transmitting a rotating force of the motor to the roller, while offsetting a rotating force of the roller caused by a weight of the curtain
2 The electnc roll screen machine of claim 1, wherein the braking device includes a brake housing of a cylindrical shape, an operating coil wound more than once in a cylindrical shape with a curved portion at either end thereof and disposed proximally to an inner wall of the brake housing, the operating coil having a radius reducing according to the rotation of the motor and expanding due to the rotating force of the roller caused by the weight of the curtain, a first transmitting device for transmitting the rotating force of the motor to the operating coil, reducing the radius of the operating coil, and rotating the operating coil,
11 PCTVKR2005/003685
RO/KR 11 01 2006 a second transmitting device coupled to the roller, for expanding the radius of the operating coil and providing friction between the operating coil and the inner wall of the brake housing according to the rotation of the roller, while transmitting a rotating force of the operating coil to the roller according to a rotation of the first transmitting device, and a coupling device for coupling the brake housing to the motor case
3 The electric roll screen machine of claim 2, wherein the first transmitting device includes a first round plate portion for inserting the rotating shaft of the motor through a central portion thereof, first arcuate portions formed to symmetrically extend from the central portion of the first round plate portion, and first stopper portions spaced apart from outer surfaces of the first arcuate portions and protrudingly installed for contacting the curved portions of the operating coil dunng a rotation thereof, and the second transmitting device includes a coupling device for coupling to the roller, a rotating shaft of the coupling device installed in a center of the coupling device, a second round plate portion for inserting the rotating shaft of the coupling device through a central portion thereof, second arcuate portions formed to symmetrically extend from the central portion of the second round plate portion, and second stopper portions spaced inward from outer surfaces of the second arcuate
12 PCT/KR2005/003685
RO/KR 11.01.2006 portions and protrudingly installed for contacting the curved portions during a rotation thereof, the second stopper portions being arranged between the first stopper portions inside the brake housing, a cylindrical portion of the operating coil being arranged between outer surfaces of the first and second stopper portions and an inner cylindrical surface of the brake housing.
13
PCT/KR2005/003685 2004-11-30 2005-11-03 Electric roll screen machine WO2006059840A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0099419 2004-11-30
KR20040099419A KR100695819B1 (en) 2004-11-30 2004-11-30 Electric roll screen machine

Publications (1)

Publication Number Publication Date
WO2006059840A1 true WO2006059840A1 (en) 2006-06-08

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WO (1) WO2006059840A1 (en)

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CN101840145A (en) * 2010-06-11 2010-09-22 清华大学 Floor type electrically controlled telescoping projection screen bracket
FR2946997A1 (en) * 2009-06-23 2010-12-24 Somfy Sas ELECTRIC ACTUATOR FOR DRIVING A DOMOTIC SCREEN
JP2012098562A (en) * 2010-11-02 2012-05-24 Osm:Kk Screen device
CN108658631A (en) * 2018-07-23 2018-10-16 南阳泰都环保科技有限公司 A kind of production equipment of excrement fowl organic fertilizer

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KR100851912B1 (en) * 2006-09-04 2008-08-13 테크노게이트 주식회사 curtain of top down style and driving apparatus therefor
KR20070020098A (en) * 2007-01-04 2007-02-16 안은로 Roll blind winding roll device using Roman shade winding device
KR100859269B1 (en) 2007-08-06 2008-09-19 여인서 A curtain apparatus for blinder type
KR101249669B1 (en) * 2011-08-17 2013-04-01 김정민 Apparatus for controlling drop speed of blind shade
KR101513648B1 (en) * 2014-05-28 2015-04-20 김순성 apparatus for opening and shutting a vinyl of vinylhouse
CN106193976B (en) * 2016-08-29 2017-12-08 无锡市绿色情丝帘业有限公司 A kind of quick installation mechanism and its roller shutter
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US6467714B1 (en) * 1997-07-16 2002-10-22 A/S Chr. Fabers Fabriker Winding mechanism for roller blinds
KR20040000158A (en) * 2002-06-24 2004-01-03 김화순 powered blind
US6766846B2 (en) * 2002-04-12 2004-07-27 Myoung-Ho Song Electric blind
KR100445300B1 (en) * 2004-02-06 2004-08-21 곽재석 The roll screen for reduction device

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US5630460A (en) * 1996-02-22 1997-05-20 Yuan; Jenchieh Motor-driven screen roller assembly for automobiles
US6467714B1 (en) * 1997-07-16 2002-10-22 A/S Chr. Fabers Fabriker Winding mechanism for roller blinds
US6766846B2 (en) * 2002-04-12 2004-07-27 Myoung-Ho Song Electric blind
KR20040000158A (en) * 2002-06-24 2004-01-03 김화순 powered blind
KR100445300B1 (en) * 2004-02-06 2004-08-21 곽재석 The roll screen for reduction device

Cited By (7)

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Publication number Priority date Publication date Assignee Title
FR2946997A1 (en) * 2009-06-23 2010-12-24 Somfy Sas ELECTRIC ACTUATOR FOR DRIVING A DOMOTIC SCREEN
EP2267330A1 (en) * 2009-06-23 2010-12-29 Somfy SAS Electric actuator for driving a home automation screen
US8253288B2 (en) 2009-06-23 2012-08-28 Somfy Sas Electric actuator for driving a home-automation screen
RU2514594C2 (en) * 2009-06-23 2014-04-27 Сомфи Сас Electric actuator for driving screen used in home environment
CN101840145A (en) * 2010-06-11 2010-09-22 清华大学 Floor type electrically controlled telescoping projection screen bracket
JP2012098562A (en) * 2010-11-02 2012-05-24 Osm:Kk Screen device
CN108658631A (en) * 2018-07-23 2018-10-16 南阳泰都环保科技有限公司 A kind of production equipment of excrement fowl organic fertilizer

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