EP1918504A1 - Kombination von Federantrieb und länglicher oberer Halterung - Google Patents

Kombination von Federantrieb und länglicher oberer Halterung Download PDF

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Publication number
EP1918504A1
EP1918504A1 EP06123089A EP06123089A EP1918504A1 EP 1918504 A1 EP1918504 A1 EP 1918504A1 EP 06123089 A EP06123089 A EP 06123089A EP 06123089 A EP06123089 A EP 06123089A EP 1918504 A1 EP1918504 A1 EP 1918504A1
Authority
EP
European Patent Office
Prior art keywords
transmission element
power assembly
head rail
spring
spring power
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06123089A
Other languages
English (en)
French (fr)
Inventor
Ming Nien
Chih-Yao Chang
Yu-Che Wen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nien Made Enterprise Co Ltd
Original Assignee
Nien Made Enterprise 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 Nien Made Enterprise Co Ltd filed Critical Nien Made Enterprise Co Ltd
Priority to EP06123089A priority Critical patent/EP1918504A1/de
Publication of EP1918504A1 publication Critical patent/EP1918504A1/de
Withdrawn legal-status Critical Current

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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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • 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
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3222—Cordless, i.e. user interface without cords
    • 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
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/323—Structure or support of upper box

Definitions

  • the present invention relates to a spring power assembly structure and a combination structure of a spring power assembly and a head rail, and more particularly, to a directionality when the spring power assembly is assembled with the head rail, and a modular structure of the spring power assembly.
  • a cordless shutter structure is driven by a spring housing or an electric motor, and the spring housing is a common means for driving.
  • Related arts such as U.S. Patent Publications No. 5482100 , 5531257 , and 6234236 , have disclosed that a spring motor is used as a power source for rotation, and a cord spool is fixed at one side of the spring motor, such that the spring motor directly drives the cord spool to rotate and thereby winding cords.
  • U.S. Patent Publication No. 6056036 has also disclosed that, a spring assembly composed of a power spring is used as a power source for rotation, the spring assembly is disposed in a head rail, and a shaft is disposed in the head rail and passes through the spring assembly, such that the shaft is driven by the spring assembly to rotate. Then, the shaft further passes through a spool assembly and drives it to rotate and thereby winding cords.
  • a plurality of spring assemblies may be serially connected on the shaft to enhance the rotating force for the shaft.
  • the revolving shaft is parallel to the axis of the shaft and the longitudinal direction of the head rail.
  • the overall longwise direction of the power spring is perpendicular to the direction of the revolving shaft. Therefore, due to such assembling method, the longwise direction of the spring assembly is perpendicular to the longitudinal direction of the head rail, which causes the width and height of the head rail to be increased.
  • a spring driver unit is accommodated within a housing, a transmission shaft is pivotally disposed in the housing, and a bevel gear set is used to transmit power between the spring driver unit and the transmission shaft.
  • a transmission shaft is pivotally disposed in the housing, and a bevel gear set is used to transmit power between the spring driver unit and the transmission shaft.
  • U.S. Patent Publication No. 6283192 no modular design is provided between the spring driver unit and the transmission shaft. Therefore, a lot of time and cost must be spent on assembling and maintenance.
  • the spring housing uses the power spring as a power source, therefore, as for the spring housing, the rotation direction of the load and the rotation direction of the recovery of the spring are specified in advance and cannot be alternately used. If they are alternately used, the power spring will be damaged. Furthermore, when being assembled by a common user, it may often be assembled incorrectly, and thereby damaging the spring housing.
  • the present invention is directed to providing a combination structure of a spring power assembly and a head rail, so as to make the spring power assembly to be modularly designed and achieve the directionality in assembling the spring power assembly with the head rail. Additionally, the spring power assembly has stopping characteristic, so as to enhance the convenience in assembling and maintenance.
  • the present invention discloses a combination structure of a spring power assembly and a head rail, wherein the spring power assembly is integrated and assembled into the head rail, a revolving shaft of a power spring assembled into the spring power assembly is perpendicular to the direction of a shaft passing through the spring power assembly, thereby reducing the required volume of the spring power assembly.
  • the head rail comprises a front wall, a rear wall, and a connection portion. The front wall and the rear wall are connected via the connection portion to form a fore and aft arrangement, and an accommodation space is formed between the front wall and the rear wall.
  • a first gripping part is formed in the front wall and a second gripping part is formed at the outer edge of the housing of the spring power assembly. When the first gripping part faces the front, the second gripping part stops at one end of the accommodation space to prevent the spring power assembly from entering into the accommodation space.
  • a bayonet pin is used to stop the spring power assembly; thus, the spring power assembly may be kept in an initial state when being assembled.
  • the spring power assembly may be stopped instantly by using the bayonet pin, so as to reduce the damage to the spring power assembly.
  • the combination structure of the spring power assembly and the head rail makes the spring power assembly be a modular design, and the spring power assembly and the head rail are designed to be unique in assembling, so as to ensure the spring power assembly to be assembled correctly, and thereby preventing the spring power assembly from being damaged due to the wrong assembling direction.
  • the spring power assembly has a stopping mechanism to stop the spring power assembly timely, and thereby achieving the efficacy of reducing the damage to the spring power assembly.
  • FIGs. 1, 2, and 3 they are respectively a schematic assembled view for a spring power assembly of the present invention to be applied in a shutter, a schematic assembled view of the spring power assembly of the present invention, and a schematic exploded view of the spring power assembly of the present invention.
  • a spring power assembly 100 and a cord pulley 710 are assembled in a head rail 500, and a shaft 700 passes through the spring power assembly 100 and the cord pulley 710.
  • the spring power assembly 100 may generate a torsional force to rotate the shaft 700, so as to further drive the cord pulley 710 to rotate and thereby winding a lift cord 750 passing through a plurality of slats 730.
  • the spring power assembly 100 includes a housing composed of a base 110, a middle cover 150, and a top cover 210, wherein a power spring 130, a first transmission element, and a second transmission element are assembled into the housing.
  • the power spring 130 is disposed on one side of the base 110, and in this embodiment, it lies at the bottom of the base 110 with a suitable depth.
  • the middle cover 150 covers the base 110 to ensure that the power spring 130 rotates in the base 110.
  • the first transmission element and the second transmission element are a first bevel gear 170 and a second bevel gear 190, wherein the first bevel gear 170 is connected to the power spring 130, and the second bevel gear 190 is pivotally disposed on the middle cover 150 and engaged with the first bevel gear 170.
  • the power spring 130 drives the first bevel gear 170 to rotate along a first direction
  • the second bevel gear 190 rotates correspondingly along a second direction.
  • the engagement of friction gears may be also utilized to achieve the same function.
  • the power spring 130 of the present invention lies in the base 110, so as to reduce the height of the whole spring power assembly 100, thus, a head rail 500 with a small height may be selected for the shutter that uses the spring power assembly 100.
  • the top cover 210 covers the middle cover 150 to prevent the foreign objects from sticking on the gear teeth of the first bevel gear 170 and the second bevel gear 190 to negatively affect the transmission fluency. In another aspect, installers are protected from being hurt during installation. As for the integrated design of the spring power assembly 100, a modular design is achieved.
  • FIGs. 4A and 4B are different schematic views for the spring power assembly of the present invention to be assembled into the head rail.
  • a torsional force generated due to the elastic force of the spring power assembly 100 is applied to the spring power assembly 100 via a load side in a specific rotation direction; thus, the power spring 130 will be damaged if being forced to rotate in an inverse direction. Therefore, the spring power assembly 100 should be assembled in the head rail 500 in a specific direction.
  • the head rail 500 has a strip-shaped connection portion 510, and a front wall 520 and a rear wall 530 are disposed on two sides of the connection portion 510 respectively, and extend for a suitable distance parallel to the major axis.
  • An accommodation space 540 is defined among the connection portion 510, the front wall 520, and the rear wall 530.
  • a first gripping part 501 is disposed in an inner side of the front wall 520 and shaped like a bearing rib.
  • the second gripping part 101 is a bump formed on one side of the housing facing the rear wall 530.
  • the distance h1 between the second gripping part 101 and the spring power assembly 100 is larger than the distance h2 between the first gripping part 501 of the head rail 500 and the connection portion 510. Therefore, when the second gripping part 101 faces the front, and the spring power assembly 100 is to be placed into the head rail 500, the first gripping part 501 and the second gripping part 101 are mutually contradicted, such that the spring power assembly 100 cannot enter into the head rail 500, thereby achieving the fool-proofing effect. On the contrary, the spring power assembly 100 is allowed to be disposed in the head rail 500 (as shown in FIG. 4A).
  • an opening 550 of the head rail 500 is formed between the front wall 520 and the rear wall 530, opposite to the connection portion 510.
  • the width of the opening 550 is consistent with that of the top cover 210 of the spring power assembly 100 and less than that of the base 110, such that the spring power assembly 100 can only be embedded into the head rail 500 laterally from one end of the head rail 500 along the major axis direction, and it cannot be directly assembled into the head rail 500 by passing through the opening 550 of the head rail from top to bottom.
  • the head rail 500 must be disposed with a plurality of first gripping parts correspondingly, wherein the gripping parts may have different shapes.
  • a pair of wedge-shaped first gripping parts 507 are disposed on the inner side of the front wall 520, so as to form a triangular space there-between
  • a pair of rectangle-shaped first gripping parts 505 are disposed in the inner side of the rear wall 530, so as to form a rectangular space there-between, which are respectively corresponding to the triangular second gripping parts 107 and rectangular second gripping parts 105 disposed on both sides of the spring power assembly 100 respectively.
  • FIGs. 5A, 5B, and 5C are schematic views of locking actions of a bayonet pin of the present invention.
  • the spring power assembly 100 further includes a bayonet pin 230, and a clipping hole 211 is opened in the top cover 210 facing the engagement position of the first bevel gear 170 and the second bevel gear 190.
  • the bayonet pin 230 passes through the clipping hole 211. Then, the bayonet pin 230 may be adjusted along the major axis direction to move between a first position (as shown in FIG.
  • the bayonet pin 230 is adjusted to whether touch the first bevel gear 170 or not.
  • One end of the bayonet pin 230 that touches the first bevel gear 170 is a free end, which is swung when under force.
  • the bayonet pin 230 is made of an elastic material, such as rubber.
  • the bayonet pin 230 is driven by the first bevel gear 170 and deformed, but, the swinging direction of the bayonet pin 230 is far away from the engagement position of the first bevel gear 170 and the second bevel gear 190, and thus the bayonet pin 230 will not bear against the engagement position.
  • the first bevel gear 170 continuously rotates along the first direction 900 and drives the second bevel gear 190 to rotate along a second direction 910.
  • the bayonet pin 230 can be taken off, so as to prevent the bayonet pin 230 from still touching the first bevel gear 170, and thereby reducing the rotation resistance of the first bevel gear 170.
  • FIGs. 6A and 6B are schematic views for the bayonet pin to be locked in the top cover.
  • a first clipping ring 231 and a second clipping ring 233 are formed on the peripheral surface of the bayonet pin 230.
  • FIG. 6A when the bayonet pin 230 is at the first position, the first clipping ring 231 and the second clipping ring 233 are respectively locked above and below the clipping hole 211 of the top cover 210, and the free end of the bayonet pin 230 does not bear against the first bevel gear 170, such that the first bevel gear 170 and the second bevel gear 190 may rotate freely, and the bayonet pin 230 is prevented from drooping off the clipping hole 211.
  • FIG. 7 it is a schematic view of a shaft of the present invention serially connected with two spring power assemblies.
  • the second bevel gear 190 has a shaft hole 191 with an inner edge of the cross section as a polygon.
  • An opening 213 is opened in the two ends of the top cover 210 corresponding to the shaft 700, such that the shaft 700 with a polygonal cross section passes through the opening 213 and then passes through the shaft hole 191 of the second bevel gear 190, so as to make the second bevel gear 190 drive the shaft 700 to rotate.
  • a plurality of spring power assemblies 100 is connected in series to the shaft 700, and they may have the same or different torsional forces, thereby providing the torsional force required by the shaft.
  • the combination structure of the spring power assembly and the head rail has a fool-proof mechanism.
  • the assembling process can be finished simply and quickly, and the maintenance or replacement also can be achieved simply and quickly.
  • the function of the bayonet pin is to stop the first bevel gear to maintain the preset status of the power spring, which is convenient for the assembling process and providing the fool-proof function.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Gears, Cams (AREA)
EP06123089A 2006-10-27 2006-10-27 Kombination von Federantrieb und länglicher oberer Halterung Withdrawn EP1918504A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06123089A EP1918504A1 (de) 2006-10-27 2006-10-27 Kombination von Federantrieb und länglicher oberer Halterung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123089A EP1918504A1 (de) 2006-10-27 2006-10-27 Kombination von Federantrieb und länglicher oberer Halterung

Publications (1)

Publication Number Publication Date
EP1918504A1 true EP1918504A1 (de) 2008-05-07

Family

ID=37897432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06123089A Withdrawn EP1918504A1 (de) 2006-10-27 2006-10-27 Kombination von Federantrieb und länglicher oberer Halterung

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EP (1) EP1918504A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056036A (en) * 1997-05-01 2000-05-02 Comfortex Corporation Cordless shade
US6234236B1 (en) * 1994-04-06 2001-05-22 Newell Operating Company Cordless balanced window covering
US6283192B1 (en) * 1997-11-04 2001-09-04 Andrew J. Toti Flat spring drive system and window cover
US6761203B1 (en) * 2003-03-31 2004-07-13 Tai-Long Huang Balanced window blind having a spring motor for concealed pull cords thereof
US20040144500A1 (en) * 2003-01-27 2004-07-29 Nien Made Enterprise Co., Ltd. Modularized power mechanism of blind
EP1696098A1 (de) * 2005-01-26 2006-08-30 Nien Made Enterprise Co., Ltd. Raffrollo ohne Zugschnur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6234236B1 (en) * 1994-04-06 2001-05-22 Newell Operating Company Cordless balanced window covering
US6056036A (en) * 1997-05-01 2000-05-02 Comfortex Corporation Cordless shade
US6283192B1 (en) * 1997-11-04 2001-09-04 Andrew J. Toti Flat spring drive system and window cover
US20040144500A1 (en) * 2003-01-27 2004-07-29 Nien Made Enterprise Co., Ltd. Modularized power mechanism of blind
US6761203B1 (en) * 2003-03-31 2004-07-13 Tai-Long Huang Balanced window blind having a spring motor for concealed pull cords thereof
EP1696098A1 (de) * 2005-01-26 2006-08-30 Nien Made Enterprise Co., Ltd. Raffrollo ohne Zugschnur

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