JPS6422700A - Aerodynamic drag umbrella - Google Patents

Aerodynamic drag umbrella

Info

Publication number
JPS6422700A
JPS6422700A JP17914987A JP17914987A JPS6422700A JP S6422700 A JPS6422700 A JP S6422700A JP 17914987 A JP17914987 A JP 17914987A JP 17914987 A JP17914987 A JP 17914987A JP S6422700 A JPS6422700 A JP S6422700A
Authority
JP
Japan
Prior art keywords
ball screw
flying object
aerodynamic drag
canopy sheet
supporters
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.)
Granted
Application number
JP17914987A
Other languages
Japanese (ja)
Other versions
JP2611240B2 (en
Inventor
Masayuki Takasaki
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP62179149A priority Critical patent/JP2611240B2/en
Publication of JPS6422700A publication Critical patent/JPS6422700A/en
Application granted granted Critical
Publication of JP2611240B2 publication Critical patent/JP2611240B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

PURPOSE: To reduce the resistance of an aerodynamic drag parachute decelerating a flying object when it is not used by rotatively driving an outer pole with an actuator, and opening the rib bones fitted with a canopy sheet via a ball screw mechanism. CONSTITUTION: An outer pole 4 journalled to a center pole 1 protruded at the rear end of a flying object A is reversed by an electric motor 25, then a sleeve nut 5 is moved to the right by a ball screw groove 6, the rib bones 12 rotatably connected to a pivot 8 are gradually closed by stays 16, and a fitted canopy sheet 17 is folded and closed by erect supporters 30 near the end of rotation. In the reverse action, the coupling of the supporters 30 is released, the sleeve nut 5 is gradually moved to the left by the ball screw mechanism, and the canopy sheet 17 is excited by tension arms 20 to the middle and is opened. This aerodynamic drag parachute gives no harmful drag to the flying object A when it is not used, and the shock generated when it is opened can be mitigated.
JP62179149A 1987-07-20 1987-07-20 Aerodynamic umbrella Expired - Lifetime JP2611240B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179149A JP2611240B2 (en) 1987-07-20 1987-07-20 Aerodynamic umbrella

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179149A JP2611240B2 (en) 1987-07-20 1987-07-20 Aerodynamic umbrella

Publications (2)

Publication Number Publication Date
JPS6422700A true JPS6422700A (en) 1989-01-25
JP2611240B2 JP2611240B2 (en) 1997-05-21

Family

ID=16060821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179149A Expired - Lifetime JP2611240B2 (en) 1987-07-20 1987-07-20 Aerodynamic umbrella

Country Status (1)

Country Link
JP (1) JP2611240B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010285137A (en) * 2009-06-12 2010-12-24 Keisuke Ozawa Space debris reducing apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874818U (en) * 1981-11-16 1983-05-20 矢野　秀雄 Invention of battery-powered one-touch open/close umbrella

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5874818U (en) * 1981-11-16 1983-05-20 矢野　秀雄 Invention of battery-powered one-touch open/close umbrella

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010285137A (en) * 2009-06-12 2010-12-24 Keisuke Ozawa Space debris reducing apparatus

Also Published As

Publication number Publication date
JP2611240B2 (en) 1997-05-21

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