WO2010047323A1 - Dispositif de manœuvre d’appareil de protection contre le rayonnement solaire - Google Patents

Dispositif de manœuvre d’appareil de protection contre le rayonnement solaire Download PDF

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Publication number
WO2010047323A1
WO2010047323A1 PCT/JP2009/068053 JP2009068053W WO2010047323A1 WO 2010047323 A1 WO2010047323 A1 WO 2010047323A1 JP 2009068053 W JP2009068053 W JP 2009068053W WO 2010047323 A1 WO2010047323 A1 WO 2010047323A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
clutch spring
clutch
drive shaft
housing
Prior art date
Application number
PCT/JP2009/068053
Other languages
English (en)
Japanese (ja)
Inventor
英治 河合
大輔 高橋
Original Assignee
立川ブラインド工業 株式会社
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 立川ブラインド工業 株式会社 filed Critical 立川ブラインド工業 株式会社
Priority to CN2009801408848A priority Critical patent/CN102112695B/zh
Publication of WO2010047323A1 publication Critical patent/WO2010047323A1/fr

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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

Definitions

  • the present invention relates to an operating device for a solar shading device such as a horizontal blind.
  • One type of horizontal blind operating device is one in which a slat is rotated and lifted by operating an endless operation cord suspended from one end of the head box.
  • a tilt device is attached to a drive shaft that is rotatably supported in the head box, and a ladder cord is suspended and supported from the tilt device.
  • the tilt device rotates the slats based on the rotation of the drive shaft, and prevents the slats from rotating further when each slat is rotated in the horizontal direction.
  • the lifting / lowering cord is suspended and supported from the lifting / lowering drum that rotates integrally with the drive shaft, and the slat is lifted / lowered by winding the lifting / lowering cord around the lifting / lowering drum based on the rotation of the drive shaft.
  • the operation code is hooked on a pulley that is rotatably supported by the head box, and the rotation of the pulley is transmitted to the drive shaft through the gear box.
  • the pulley is rotated by operating the operation cord, the drive shaft is rotated, and the slat can be rotated and lifted by the rotation of the drive shaft.
  • Such horizontal blinds are equipped with a stopper device that prevents the slats from dropping their own weight when the operation cord is not operated.
  • This stopper device is provided between the operation shaft and the drive shaft of the gear box. The stopper device operates to transmit rotation of the operation shaft of the gear box to the drive shaft and prevent rotation of the drive shaft due to a load acting on the drive shaft.
  • the clutch spring when the clutch spring is wound around the brake drum and the pulley is rotated by the operation of the operation cord, the clutch spring is expanded to reduce the friction with the brake drum, thereby raising and lowering the slats. Make it possible. Further, when the operation cord is not operated, the friction force between the brake drum and the clutch spring prevents the slat from dropping its own weight.
  • Patent Document 1 discloses an operation in which the operating force can be reduced by rotating the rotating shaft without passing through the clutch spring during the lifting operation of the blind while expanding the clutch spring to reduce the friction with the brake drum. An apparatus is disclosed.
  • An object of the present invention is to provide a miniaturized operating device for a solar shading device that reduces the operating force required for the raising / lowering operation of the shielding material and prevents the blind weight from falling due to the frictional force of the clutch spring.
  • an operating device for a solar shading device comprises an operating shaft, a drive shaft, and a clutch spring.
  • the operation shaft is rotated through operation of the operation unit.
  • the drive shaft rotates based on the rotation of the operation shaft to raise and lower the shielding material.
  • the clutch spring is interposed between the operation shaft and the drive shaft, and is attached to the brake drum.
  • the clutch spring rotates integrally with the operation shaft based on the rotation of the operation shaft, and transmits the rotation of the operation shaft to the drive shaft.
  • the clutch spring prevents rotation of the drive shaft by a frictional force generated between the clutch spring and the brake drum when the operation portion is not operated.
  • the brake drum is composed of a cylindrical housing of a one-way clutch. The one-way clutch allows the housing to rotate integrally with the clutch spring only by rotating the operating shaft in the pulling direction of the shielding material.
  • the present invention it is possible to reduce the operating force required for the raising / lowering operation of the shielding material, and to reduce the size of the operating device of the solar radiation shielding device that prevents the weight of the blind from falling due to the frictional force of the clutch spring.
  • a horizontal blind (sunlight shielding device) shown in FIG. 1 has a head box 1 that supports a plurality of slats (shielding materials) 3 through a plurality of ladder cords 2 at the lower end of the ladder cord 2.
  • a bottom rail 4 is attached.
  • the upper end portion of the ladder cord 2 is supported by a tilt device (not shown) disposed in the head box 1, and the tilt device is provided on a drive shaft 17 (see FIG. 2) disposed in the head box 1. All the slats 3 are rotated in the same phase via the ladder cord 2 based on the rotation. The configuration of the drive shaft 17 will be described later.
  • the tilt device is configured not to further rotate each slat in the same direction after each slat 3 is rotated until the slat 3 is substantially vertical.
  • a plurality of elevating cords 5 hanging from the head box 1 are passed through the slat 3, and the bottom rail 4 is connected to the lower end of the elevating cord 5.
  • An upper end portion of the lifting / lowering cord 5 is wound around a winding device (not shown) in the head box 1.
  • An endless operation cord (operation portion) 6 is suspended from one longitudinal end portion of the head box 1, and the operation device is operated by operating the operation cord 6 so that the slat 3 can be moved up and down or adjusted in angle. Yes.
  • a specific configuration of the operating device will be described.
  • a gear box 7 is accommodated at one end of the head box 1 and fixed to the head box 1, and an input gear 8 composed of a bevel gear is provided in the gear box 7. And the output gear 9 are rotatably supported in mesh with each other.
  • the base end of the input shaft 10 is attached to the input gear 8, the tip of the input shaft 10 protrudes from the front surface of the head box 1, and the pulley 11 is attached to the protruding tip. Then, when the operation cord 6 is hooked on the pulley 11 and the pulley 11 is rotated by the operation of the operation cord 6, the output gear 9 is rotated via the input gear 8.
  • a side surface of the clutch case 12 is fixed to the side surface of the gear box 7, and a support hole 13 is formed on the other side surface of the clutch case 12.
  • the shaft hole 15 of the shaft receiver 14 accommodated in the clutch case 12 is rotatably supported by the support hole 13.
  • a square hole 16 is formed in the central portion of the shaft portion 15, and an end portion of the drive shaft 17 having a square bar shape is fitted into the square hole 16. Therefore, the end of the drive shaft 17 is supported by the shaft receiver 14 rotatably supported by the clutch case 12, and the shaft receiver 14 and the drive shaft 17 rotate integrally.
  • the rotational axis of the drive shaft 17 coincides with the rotational axis of the output gear 9.
  • a one-way clutch 18 is accommodated in the clutch case 12.
  • the one-way clutch 18 includes an inner shaft 19, a retainer 20 that rotates around the inner shaft 19, an outer sleeve 21 that is fitted to the outer peripheral surface of the retainer 20, and its outer And a substantially cylindrical housing 22 fitted to the outer peripheral surface of the sleeve 21.
  • the housing 22 functions as a brake drum.
  • the housing 22, the outer sleeve 21, and the retainer 20 rotate integrally around the rotation axis of the inner shaft 19.
  • the rotation axis of the inner shaft 19 coincides with the rotation axis of the operation shaft 29 that rotates integrally with the output gear 9.
  • the retainer 20 includes an accommodation groove 24 that holds the six needles 23 between the outer peripheral surface of the inner shaft 19 and the inner peripheral surface of the outer sleeve 21, and the needles 23 that have the same circumference of the inner shaft 19. And a recess 26 that houses a spring 25 that presses in the direction.
  • the outer sleeve 21, the retainer 20, the needle 23, and the spring 25 constitute a clutch mechanism.
  • the interval in the radial direction of the accommodating groove 24 is narrowed in the pressing direction of the spring 25 by the outer peripheral surface of the round bar-shaped inner shaft 19 and the hexagonal hole-shaped inner peripheral surface of the outer sleeve 21. Therefore, when the needle 23 moves in the pressing direction, the needle 23 is sandwiched between the inner shaft 19 and the outer sleeve 21.
  • the housing 22 can rotate in the direction of the arrow A and is prevented from rotating in the direction of the arrow B with respect to the inner shaft 19 which is fixed in the one-way clutch 18.
  • a clutch spring 27 composed of a torsion coil spring is wound around the outer peripheral surface of the housing 22 of the one-way clutch 18. As shown in FIG. 3, both end portions of the clutch spring 27 are bent in the radial direction to form engagement ends 28a and 28b. The engagement ends 28 a and 28 b protrude at an interval of approximately 90 degrees with respect to the center of the housing 22.
  • the operation shaft 29 of the output gear 9 has a first projecting piece 30 extending over an angle range of approximately 90 degrees in the clutch case 12.
  • the first projecting piece 30 is located in the first region formed between the engaging ends 28a and 28b, that is, between the engaging ends 28a and 28b over an angle range of approximately 90 degrees.
  • the first projecting piece 30 is formed to be curved along the outer peripheral surface of the housing 22 within an angle range of approximately 90 degrees with respect to the center of the inner shaft 19, and is engaged as the operation shaft 29 rotates.
  • the clutch spring 27 is expanded in diameter in contact with one of the ends 28a, 28b.
  • the shaft receiver 14 has a second protruding piece 31 extending over the angle range of about 270 degrees.
  • the second projecting piece 31 is located in the second region formed between the engaging ends 28a and 28b, that is, between the engaging ends 28a and 28b over an angle range of approximately 270 degrees.
  • the housing 22 can be rotated in the same direction by the one-way clutch 18, the housing 22 is rotated integrally with the clutch spring 27. Therefore, the clutch spring 27 does not slide with respect to the housing 22.
  • the one-way clutch 18 prevents the housing 22 from rotating in the direction of arrow B. Therefore, since the rotation of the clutch spring 27 is blocked, the rotation of the drive shaft 17 is blocked and the slat 3 is prevented from dropping its own weight.
  • the following advantages can be obtained. (1) When the slat 3 is pulled up, the one-way clutch 18 is allowed to rotate, so that the clutch spring 27 and the housing 22 are rotated together. Accordingly, no sliding resistance is generated when the clutch spring 27 rotates, so that the operating force required for the lifting operation of the slat 3 can be reduced.
  • the operating device as described above may be used for a lifting curtain or a pleated screen.

Abstract

Le dispositif de manœuvre d’un store vénitien comprend un arbre d’actionnement entraîné en rotation par l’actionnement d’une section de manœuvre, un arbre d’entraînement qui tourne en liaison avec la rotation de l’arbre d’actionnement et soulève des lamelles, et un ressort d’embrayage interposé entre l’arbre d’actionnement et l’arbre d’entraînement et fixé à la cage d’un embrayage à roue libre. Le ressort d’embrayage transmet la rotation de l’arbre d’actionnement à l’arbre d’entraînement de sorte que l’arbre d’entraînement tourne en liaison avec la rotation de l’arbre d’actionnement et d’un seul tenant avec ce dernier. Le ressort d’embrayage arrête la rotation de l’arbre d’entraînement au moyen d’une force de frottement générée entre lui-même et la cage quand la section de manœuvre n’est pas actionnée. L’embrayage à roue libre n’entraîne en rotation la cage avec le ressort d’embrayage que lorsque l’arbre d’actionnement est entraîné en rotation dans le sens de levage des lamelles.
PCT/JP2009/068053 2008-10-21 2009-10-20 Dispositif de manœuvre d’appareil de protection contre le rayonnement solaire WO2010047323A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009801408848A CN102112695B (zh) 2008-10-21 2009-10-20 日射遮蔽装置的操作装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008270901A JP5376708B2 (ja) 2008-10-21 2008-10-21 日射遮蔽装置の操作装置
JP2008-270901 2008-10-21

Publications (1)

Publication Number Publication Date
WO2010047323A1 true WO2010047323A1 (fr) 2010-04-29

Family

ID=42119360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/068053 WO2010047323A1 (fr) 2008-10-21 2009-10-20 Dispositif de manœuvre d’appareil de protection contre le rayonnement solaire

Country Status (3)

Country Link
JP (1) JP5376708B2 (fr)
CN (1) CN102112695B (fr)
WO (1) WO2010047323A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6588760B2 (ja) * 2015-07-24 2019-10-09 立川ブラインド工業株式会社 クラッチ装置及び遮蔽装置
KR20180055330A (ko) * 2016-11-17 2018-05-25 지상훈 양방향 클러치형 조작 구동장치
JP6986465B2 (ja) * 2018-02-15 2021-12-22 立川ブラインド工業株式会社 ブラインドのストッパー装置
JP7199923B2 (ja) * 2018-11-07 2023-01-06 株式会社ニチベイ 遮蔽装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05302482A (ja) * 1992-04-27 1993-11-16 Tachikawa Blind Mfg Co Ltd ブラインドのスラット駆動装置
JPH11182160A (ja) * 1997-12-24 1999-07-06 Nichibei Co Ltd ブラインドの操作装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4729274B2 (ja) * 2004-07-15 2011-07-20 立川ブラインド工業株式会社 日射遮蔽装置の遮蔽材昇降装置
JP4516812B2 (ja) * 2004-09-15 2010-08-04 立川ブラインド工業株式会社 横型ブラインドのスラット駆動装置及び日射遮蔽装置の遮蔽材昇降装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05302482A (ja) * 1992-04-27 1993-11-16 Tachikawa Blind Mfg Co Ltd ブラインドのスラット駆動装置
JPH11182160A (ja) * 1997-12-24 1999-07-06 Nichibei Co Ltd ブラインドの操作装置

Also Published As

Publication number Publication date
JP5376708B2 (ja) 2013-12-25
CN102112695A (zh) 2011-06-29
JP2010101007A (ja) 2010-05-06
CN102112695B (zh) 2012-07-25

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