US20150167683A1 - Ceiling Fan - Google Patents

Ceiling Fan Download PDF

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Publication number
US20150167683A1
US20150167683A1 US14/411,859 US201314411859A US2015167683A1 US 20150167683 A1 US20150167683 A1 US 20150167683A1 US 201314411859 A US201314411859 A US 201314411859A US 2015167683 A1 US2015167683 A1 US 2015167683A1
Authority
US
United States
Prior art keywords
fan
blade
fan blade
segments
plate
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.)
Abandoned
Application number
US14/411,859
Other languages
English (en)
Inventor
Cristian Care
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.)
Martec Pty Ltd
Original Assignee
Martec Pty 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
Priority claimed from AU2012902819A external-priority patent/AU2012902819A0/en
Application filed by Martec Pty Ltd filed Critical Martec Pty Ltd
Assigned to MARTEC PTY LTD reassignment MARTEC PTY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CARE, CRISTIAN
Publication of US20150167683A1 publication Critical patent/US20150167683A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/088—Ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction

Definitions

  • This invention relates to a ceiling fan and more particularly relates to a ceiling fan with retractable blades.
  • Ceiling fans that often incorporate light fittings and it has been proposed to incorporate retractable blades that retract within the confines of the light fitting when not in use and expand radially outwardly when in use to operate as conventional fan blades.
  • a fan blade comprising a mount supporting a plurality of superimposed fan blade segments arranged to slide relative to one another from a retracted storage configuration to an extended operative configuration.
  • a ceiling fan comprising an electric motor adapted to drive a rotating plate that supports a plurality of equally spaced fan blades that extend radially of the plate, each fan blade comprising a root and a tip joined by leading and trailing edges, the root being adapted to be secured to the plate, wherein each blade comprises a plurality of fan blade segments arranged to slide telescopically one within the other whereby the fan blade segments can be located substantially within the periphery of the plate in a retracted configuration and can extend radially outwardly in an operative configuration.
  • FIGS. 1 a , 1 b and 1 c are respectively plan, side and perspective views of a fan in an expanded operative configuration
  • FIGS. 2 a , 2 b , and 2 c are respectively plan, side and perspective views of the fan in a retracted inoperative configuration
  • FIGS. 3 a and 3 b are respectively plan and side elevational views of the fan in the retracted configuration illustrating a drive assembly
  • FIGS. 4 a , 4 b and 4 c are respectively plan, side and perspective views of the fan in the expanded operative configuration with components omitted for clarity,
  • FIG. 5 is a plan view of part of components for the fan in the expanded configuration
  • FIG. 6 is a plan view of one blade assembly in the expanded configuration
  • FIG. 7 is a cross sectional view taken along the lines A-A of FIG. 6 .
  • FIG. 8 is a cross sectional view taken along the lines B-B of FIG. 6 .
  • FIG. 9 is a cross sectional view taken along the lines C-C of FIG. 6 .
  • the ceiling fan 10 as illustrated in the accompanying drawings comprises an electric motor 11 that is hung from the ceiling.
  • the electric motor 11 is coupled to a circular plate 12 whereby the motor 11 rotates the plate 12 about a vertical axis.
  • the plate 12 is adapted to support four equally spaced fan blade assemblies 20 , 21 , 22 , 23 .
  • Each blade assembly 20 to 23 comprises three fan blade segments 30 , 31 , 32 that can slide relative to one another from a retracted position ( FIG. 2 ) where the fan blade segments are within the confines of the plate 12 to an outward operative position ( FIG. 1 ) in which the fan blade segments 30 - 32 project radially outwardly of the plate 12 to facilitate movement of air as the plate 12 is rotated by the electric motor 11 .
  • the electric motor 11 can be either on top of or below the plate 12 .
  • Each blade assembly 20 - 23 is positioned on the periphery of the plate 12 via a mount 40 that is secured to the plate 12 . As shown in FIG. 2 a the mounts 40 are equally spaced around the periphery of the plate to be diametrically opposed to one another.
  • the blade comprises three blade segments, namely the first outer segment 30 , an intermediate segment 31 that is telescopically mounted within the outer segment 30 , and an inner blade tip 32 that is again telescopically mounted within the intermediate section.
  • Each mount 40 comprises a pair of support legs 41 , 42 having outwardly extending flanges 43 , 44 that enable the legs to be screwed to the surface of the plate 12 .
  • the support legs 41 , 42 support a bridging member 45 that defines a slot 46 that accommodates a first outer blade segment 30 .
  • the slot defines a passageway that allows the blade segments 30 to be a smooth sliding fit within the slot 46 .
  • the legs 41 , 42 of the mount assembly are also arranged so that the slot is on an incline of between 10 and 15 degrees (see FIG. 2 b ). The angle on the slot gives the blade, which is otherwise flat, an angle of incidence to give the desired air movement when in the extended and operative position.
  • the blade segments 30 , 31 , 32 all slide relative to one another so that in the retracted position ( FIG. 2 ) the tip 32 is wholly within the intermediate segment 31 which is wholly within the outer segment 30 . In the extended position shown in FIG. 2 the tip 32 projects radially outwardly of the intermediate segment 31 which is in turn radially outwardly of the outer segment 30 .
  • the telescopic arrangement of the three blade segments allows the segments to slide outwardly and the force to urge this outward movement is the centrifugal force generated by rotation of the plate 12 by the electric motor 11 .
  • Each diametrically opposed pair of blade assemblies 21 , 22 or 23 , 24 are interconnected by a chain 50 that rotates about a sprocket 51 located on the underside of each mount 40 .
  • the chain is also coupled to a centrally located sprocket 52 that is in turn coupled to a coil spring 53 located within a housing 54 .
  • the chain 50 is attached to an elongate rod 60 via an adjustable linkage.
  • the rod 60 extends parallel to the chain 50 and is coupled to an inner end of the outer blade segment 32 . Movement of the chain 50 pills the rod 60 radially inwards to pull the outer blade segment 32 into the intermediate segment 31 until the inner end of the blade segment 32 abuts stop 63 on the inner end of the intermediate segment 31 . Further movement of the rod 60 causes inward displacement of the intermediate segment 31 until it engages stops 64 on the inner end of the first blade segment 30 . Al these segments 30 , 31 , 32 are then pulled by the rod 60 under the mount 40 to assume the fully retracted position shown in FIG. 2 .
  • the fan blade segments 30 - 32 are moulded in plastics to define leading and trailing edges.
  • the blade segments 30 - 32 are substantially flat and the tip segment 32 has a curved end.
  • the fan described above has a number of advantages over conventional fans with retractable blades. Because the blades do not pivot from the operative to the retracted positions there is no danger of collision between the blades during the retraction process. Furthermore, the fact that the blade segments expand radially or in a longitudinal sense means that the blades can be designed to have increased length to thereby increase the airflow. Furthermore, the telescopic location of the blade segments allows the fan to assume a compact and comparatively thin configuration in the retracted position which makes the fan, especially when it incorporates a light fitting, much more attractive in the retracted position than is the case with other fans with retractable blades where the blades form an unsightly nest above the light fitting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Developing Agents For Electrophotography (AREA)
US14/411,859 2012-07-02 2013-06-03 Ceiling Fan Abandoned US20150167683A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AU2012902819 2012-07-02
AU2012902819A AU2012902819A0 (en) 2012-07-02 Ceiling fan
AU2013202271A AU2013202271B2 (en) 2012-07-02 2013-04-02 Ceiling Fan
AU2013202271 2013-04-02
PCT/AU2013/000584 WO2014005171A1 (fr) 2012-07-02 2013-06-03 Ventilateur de plafond

Publications (1)

Publication Number Publication Date
US20150167683A1 true US20150167683A1 (en) 2015-06-18

Family

ID=49881152

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/411,859 Abandoned US20150167683A1 (en) 2012-07-02 2013-06-03 Ceiling Fan

Country Status (10)

Country Link
US (1) US20150167683A1 (fr)
EP (1) EP2867535A4 (fr)
CN (1) CN104411979B (fr)
AU (1) AU2013202271B2 (fr)
CA (1) CA2876759A1 (fr)
HK (1) HK1209814A1 (fr)
MY (1) MY176019A (fr)
NZ (1) NZ702997A (fr)
SG (1) SG11201408524YA (fr)
WO (1) WO2014005171A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107461349A (zh) * 2017-08-19 2017-12-12 浙江帝恒实业有限公司 一种两用风扇
CN110005623A (zh) * 2019-05-08 2019-07-12 青岛海尔空调器有限总公司 贯流风机及包括该风机的空调器
CN113314991A (zh) * 2021-05-17 2021-08-27 姜永健 一种电气自动化具有散热功能的配电箱
CN113623253A (zh) * 2021-09-15 2021-11-09 宁波大学 一种可伸缩的便携式风扇
USD1005476S1 (en) * 2016-02-05 2023-11-21 Hunter Fan Company Ceiling fan motor housing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351859A (zh) * 2016-10-31 2017-01-25 张家港沙工科技服务有限公司 一种伸缩储藏式吊扇
CN112268014A (zh) * 2016-12-31 2021-01-26 毛永波 套管弹力伸缩隐形扇叶风轮与风扇
CN111207094B (zh) * 2020-02-24 2020-11-03 曹天远 一种宽范围调节叶片角度的轴流风机
CN111828385A (zh) * 2020-08-04 2020-10-27 徐州徐工挖掘机械有限公司 一种散热器风扇叶片可调节装置
CN112377442A (zh) * 2020-11-12 2021-02-19 常熟市耀华机械有限公司 一种纺织厂除尘用风机
US11746796B1 (en) * 2022-11-10 2023-09-05 SmithGroup Companies, Inc. Plenum fan with telescoping blades

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5151011A (en) * 1991-01-09 1992-09-29 Beverly Hills Fan Company Ceiling fan with interchangeable body
US20050249598A1 (en) * 2004-05-05 2005-11-10 Stanfield Young Ceiling fan with multiple motors
US7354246B2 (en) * 2005-10-26 2008-04-08 Hewlett-Packard Development Company, L.P. Electronics cooling fan with collapsible fan blade
US20080226449A1 (en) * 2005-07-13 2008-09-18 Joe Villella Combined Light Fitting and Ceiling Fan

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213716B1 (en) * 1999-11-19 2001-04-10 King Of Fans, Inc. Folding fan
US7153100B2 (en) * 2004-12-23 2006-12-26 Fanimation, Inc. Ceiling fan with retractable fan blades
CN2842027Y (zh) * 2005-06-09 2006-11-29 上海市宝山区青少年科学技术指导站 吊扇风页伸缩装置
CN201218214Y (zh) * 2008-06-06 2009-04-08 李元美 一种可伸缩叶片风扇
US8142156B2 (en) * 2008-08-11 2012-03-27 Rite-Hite Holding Corporation Ceiling fans with low solidity ratio
CN201401354Y (zh) * 2009-04-27 2010-02-10 武汉市第十一中学 扇叶可伸缩的吊扇
AU2010100672B4 (en) * 2010-06-25 2010-12-23 Beacon Lighting International Limited Ceiling fan
CN201802664U (zh) * 2010-10-14 2011-04-20 杨中峰 扇叶可调电风扇
CN102278317A (zh) * 2010-10-26 2011-12-14 上海市黄浦区新凌小学 折叠式吊扇
CN202132274U (zh) * 2011-06-27 2012-02-01 河海大学 可伸缩扇叶电风扇

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5151011A (en) * 1991-01-09 1992-09-29 Beverly Hills Fan Company Ceiling fan with interchangeable body
US20050249598A1 (en) * 2004-05-05 2005-11-10 Stanfield Young Ceiling fan with multiple motors
US20080226449A1 (en) * 2005-07-13 2008-09-18 Joe Villella Combined Light Fitting and Ceiling Fan
US7354246B2 (en) * 2005-10-26 2008-04-08 Hewlett-Packard Development Company, L.P. Electronics cooling fan with collapsible fan blade

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Rezek US 5,151,011 *
Villella US 2008/0226449 A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1005476S1 (en) * 2016-02-05 2023-11-21 Hunter Fan Company Ceiling fan motor housing
CN107461349A (zh) * 2017-08-19 2017-12-12 浙江帝恒实业有限公司 一种两用风扇
CN110005623A (zh) * 2019-05-08 2019-07-12 青岛海尔空调器有限总公司 贯流风机及包括该风机的空调器
CN113314991A (zh) * 2021-05-17 2021-08-27 姜永健 一种电气自动化具有散热功能的配电箱
CN113623253A (zh) * 2021-09-15 2021-11-09 宁波大学 一种可伸缩的便携式风扇

Also Published As

Publication number Publication date
EP2867535A4 (fr) 2016-03-02
CA2876759A1 (fr) 2014-01-09
WO2014005171A1 (fr) 2014-01-09
HK1209814A1 (en) 2016-04-08
CN104411979B (zh) 2019-04-16
AU2013202271B2 (en) 2015-12-24
EP2867535A1 (fr) 2015-05-06
MY176019A (en) 2020-07-21
SG11201408524YA (en) 2015-01-29
AU2013202271A1 (en) 2014-01-16
CN104411979A (zh) 2015-03-11
NZ702997A (en) 2017-03-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MARTEC PTY LTD, AUSTRALIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CARE, CRISTIAN;REEL/FRAME:034596/0116

Effective date: 20141205

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION