GB2224253A - Removable flexible aerofoil section - Google Patents

Removable flexible aerofoil section Download PDF

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Publication number
GB2224253A
GB2224253A GB8825569A GB8825569A GB2224253A GB 2224253 A GB2224253 A GB 2224253A GB 8825569 A GB8825569 A GB 8825569A GB 8825569 A GB8825569 A GB 8825569A GB 2224253 A GB2224253 A GB 2224253A
Authority
GB
United Kingdom
Prior art keywords
aerofoil section
removable
removable flexible
flexible
attached
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Withdrawn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
GB8825569A
Other versions
GB8825569D0 (en
Inventor
Martin Dearsley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8825569A priority Critical patent/GB2224253A/en
Publication of GB8825569D0 publication Critical patent/GB8825569D0/en
Publication of GB2224253A publication Critical patent/GB2224253A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
    • B64C31/028—Hang-glider-type aircraft; Microlight-type aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J17/00—Weather guards for riders; Fairings or stream-lining parts not otherwise provided for
    • B62J17/10—Ventilation or air guiding devices forming part of fairings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

An aerofoil section e.g. on exposed tubing on a hang glider or pedal cycle has a body 1 which is removable so that it can be replaced on a repaired construction and is flexible in order that under adverse loads will not deform or fracture. <IMAGE>

Description

REMOVABLE FLEXIBLE AEROFOIL SECTION Constructions subjected to low speed airflow are subject of parasitic drag which can be reduced by creating a classical peardrop aerofoil shape around the existing construction.
Particularly in the use of class one flex wings (hang gliders), microlights and pedal cycle frames and accessories. Solid aerofoil sections however, are heavier than spherical tube sections have low lateral strength capabilities but are excessively strong in frontal loads which can cause unnecessary injury or discomfort e.g., when a pilot collides with the structure under heavy landing conditions in the case of the hang glider and when a rider is forced to carry the cycle manually in the case of a cyclocross competition.
According to the present invention there is provided a flexible aerofoil section comprising of two separate hollow sections which may be formed by way of extrusion, moulding, or other suitable profiling technique which when mounted on an existing tubular construction creates classical peardrop aerofoil shape which can be removed or added as required.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: - Figure 1 - shows in perspective, the sections in position on an existing tubular construction.
Figure 2 - shows the separation of the sections from the construction.
Figure 3 - shows the mounting of the sections on the exposed tubing on a hang glider.
Figure 4 - shows the mounting of the sections on the exposed tubing on a pedal cycle.
Referring to the drawing the sections comprise of a flexible extruded or moulded material secured to the existing construction by, for example, glue, ties or similar means (not shown).
In order to attach the section(s) to. the existing tubing it is placed at a predetermined angle in order that the greatest efficiency is gained when exposed to the primary airflow in which reduction in drag is required. It is then fixed by the means previously explained.
In order to remove in the case of breakage of the main structure to which the section(s) have been attached the ties or bonding methods are released.

Claims (5)

1. - An aerofoil section comprising of two separate sections which can be added in part or in whole to an existing tubular construction in order to reduce parasitic drag.
2. A removable aerofoil section as claimed in 1 where the material of construction is flexible. which allows it to recover from severe bending or compression moments without damage.
3. A removable flexible aerofoil section as claimed in 1 and 2 when attached to the exposed tubing on a hang glider.
4. A removable flexible aerofoil section as claimed in 1 and 2 when attached to the exposed tubing on a microlight.
5. A removable flexible aerofoil section as claimed in 1 and 2 when attached to the frame or accessories on a pedal cycle.
GB8825569A 1988-11-01 1988-11-01 Removable flexible aerofoil section Withdrawn GB2224253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8825569A GB2224253A (en) 1988-11-01 1988-11-01 Removable flexible aerofoil section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8825569A GB2224253A (en) 1988-11-01 1988-11-01 Removable flexible aerofoil section

Publications (2)

Publication Number Publication Date
GB8825569D0 GB8825569D0 (en) 1988-12-07
GB2224253A true GB2224253A (en) 1990-05-02

Family

ID=10646139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8825569A Withdrawn GB2224253A (en) 1988-11-01 1988-11-01 Removable flexible aerofoil section

Country Status (1)

Country Link
GB (1) GB2224253A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231316A (en) * 1989-05-03 1990-11-14 Christopher John Gladish Flexible lightweight aerofoil sheath for hang-glider and micro-light "uprights" and king posts
GB2278814A (en) * 1993-06-04 1994-12-14 Moore Large & Co Ltd A bicycle frame
EP0686551A1 (en) * 1994-06-11 1995-12-13 Honda Giken Kogyo Kabushiki Kaisha Body cover structure in motor-assisted bicycle
US5538285A (en) * 1994-01-18 1996-07-23 Goode; David P. Ski pole shaft with rotating wing foil
US5782139A (en) * 1995-09-06 1998-07-21 Fraiman; Peter G. Bicycle handlebar centerpiece
US7147238B2 (en) * 2003-08-05 2006-12-12 Shimano, Inc. Bicycle part with a partitioned chamber
WO2009115806A1 (en) * 2008-03-20 2009-09-24 The United Kingdom Sports Council Component for a bicycle to reduce aerodynamic drag
EP2241497A1 (en) * 2009-04-14 2010-10-20 Vroomen/White Design Inc. Aerodynamic handlebar storage container
EP1886911A3 (en) * 2006-08-10 2011-02-23 Philip White Aerodynamic fork mast structure
DE102009054398C5 (en) * 2009-11-24 2018-05-03 Scott Sports S.A. Component for bicycle frame

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB365300A (en) * 1931-01-05 1932-01-21 Albert Eustace Short Improvements in fairings for streamlining struts of aircraft

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB365300A (en) * 1931-01-05 1932-01-21 Albert Eustace Short Improvements in fairings for streamlining struts of aircraft

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231316A (en) * 1989-05-03 1990-11-14 Christopher John Gladish Flexible lightweight aerofoil sheath for hang-glider and micro-light "uprights" and king posts
GB2231316B (en) * 1989-05-03 1993-03-31 Christopher John Gladish Flexible lightweight aerofoil sheath for hang-glider and micro-light uprights and king-posts
GB2278814B (en) * 1993-06-04 1996-10-09 Moore Large & Co Ltd Bicycle
WO1994029162A1 (en) * 1993-06-04 1994-12-22 Moore Large & Co. Limited Bicycle frame with outer casing
GB2278814A (en) * 1993-06-04 1994-12-14 Moore Large & Co Ltd A bicycle frame
US5538285A (en) * 1994-01-18 1996-07-23 Goode; David P. Ski pole shaft with rotating wing foil
EP0686551A1 (en) * 1994-06-11 1995-12-13 Honda Giken Kogyo Kabushiki Kaisha Body cover structure in motor-assisted bicycle
US5782139A (en) * 1995-09-06 1998-07-21 Fraiman; Peter G. Bicycle handlebar centerpiece
US7147238B2 (en) * 2003-08-05 2006-12-12 Shimano, Inc. Bicycle part with a partitioned chamber
EP1886911A3 (en) * 2006-08-10 2011-02-23 Philip White Aerodynamic fork mast structure
WO2009115806A1 (en) * 2008-03-20 2009-09-24 The United Kingdom Sports Council Component for a bicycle to reduce aerodynamic drag
EP2241497A1 (en) * 2009-04-14 2010-10-20 Vroomen/White Design Inc. Aerodynamic handlebar storage container
US9051023B2 (en) 2009-04-14 2015-06-09 Vroomen/White Design Inc. Aerodynamic handlebar storage container
DE102009054398C5 (en) * 2009-11-24 2018-05-03 Scott Sports S.A. Component for bicycle frame

Also Published As

Publication number Publication date
GB8825569D0 (en) 1988-12-07

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)