JPS5697646A - Reclining mechanism for seat - Google Patents

Reclining mechanism for seat

Info

Publication number
JPS5697646A
JPS5697646A JP17286879A JP17286879A JPS5697646A JP S5697646 A JPS5697646 A JP S5697646A JP 17286879 A JP17286879 A JP 17286879A JP 17286879 A JP17286879 A JP 17286879A JP S5697646 A JPS5697646 A JP S5697646A
Authority
JP
Japan
Prior art keywords
spiral spring
reclining mechanism
outer end
improve
cross
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.)
Pending
Application number
JP17286879A
Other languages
Japanese (ja)
Inventor
Juji Kojima
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.)
NHK Spring Co Ltd
Original Assignee
NHK Spring 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 NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to JP17286879A priority Critical patent/JPS5697646A/en
Publication of JPS5697646A publication Critical patent/JPS5697646A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/10—Spiral springs with turns lying substantially in plane surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Springs (AREA)

Abstract

PURPOSE:To improve a seat reclining mechanism in operating feeling by making the cross-sectional size and shape of a portion of a spiral spring, over a given length from its outer end, differ from the other portions in order to minimize the hysteresis of the torque characteristics. CONSTITUTION:Over the quarter or half of a coil of a spiral spring 10 from its outer end, the size and shape of the cross-section perpendicular to the longitudinal direction are defined as shown in the figure in order to improve its flexural rigidity so that the second moment of area is raised and the amount of eccentricity is reduced. At operation, the whole coil turns of the spiral spring 10 are almost uniformly bent, so that there are fewer contacts betwen plates and hysteresis becomes smaller. Thereby, the operating feeling of a seat reclining mechanism is improved and at the same time the spiral spring 10 can be made more compact.
JP17286879A 1979-12-31 1979-12-31 Reclining mechanism for seat Pending JPS5697646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17286879A JPS5697646A (en) 1979-12-31 1979-12-31 Reclining mechanism for seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17286879A JPS5697646A (en) 1979-12-31 1979-12-31 Reclining mechanism for seat

Publications (1)

Publication Number Publication Date
JPS5697646A true JPS5697646A (en) 1981-08-06

Family

ID=15949783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17286879A Pending JPS5697646A (en) 1979-12-31 1979-12-31 Reclining mechanism for seat

Country Status (1)

Country Link
JP (1) JPS5697646A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002275A1 (en) * 1988-08-22 1990-03-08 William King Springs and reels
JPH07269620A (en) * 1994-03-31 1995-10-20 Three D Compo Res:Kk Power spring mechanism
CN100465820C (en) * 2003-04-29 2009-03-04 帕特尔菲利普公司 The regulating device that comprises escapement and plane hairspring that is used for watch and clock movement
WO2023279500A1 (en) * 2021-07-09 2023-01-12 永康市海力实业有限公司 Reinforced coil spring of reel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002275A1 (en) * 1988-08-22 1990-03-08 William King Springs and reels
JPH07269620A (en) * 1994-03-31 1995-10-20 Three D Compo Res:Kk Power spring mechanism
CN100465820C (en) * 2003-04-29 2009-03-04 帕特尔菲利普公司 The regulating device that comprises escapement and plane hairspring that is used for watch and clock movement
WO2023279500A1 (en) * 2021-07-09 2023-01-12 永康市海力实业有限公司 Reinforced coil spring of reel

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