US1892339A - Conical spiral spring - Google Patents

Conical spiral spring Download PDF

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Publication number
US1892339A
US1892339A US297209A US29720928A US1892339A US 1892339 A US1892339 A US 1892339A US 297209 A US297209 A US 297209A US 29720928 A US29720928 A US 29720928A US 1892339 A US1892339 A US 1892339A
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US
United States
Prior art keywords
spring
conical spiral
spiral spring
abutment
coils
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.)
Expired - Lifetime
Application number
US297209A
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English (en)
Inventor
Gross Siegfried
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
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 Krupp Stahl AG filed Critical Krupp Stahl AG
Application granted granted Critical
Publication of US1892339A publication Critical patent/US1892339A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16F1/08—Wound springs with turns lying in mainly conical surfaces, i.e. characterised by varying diameter

Definitions

  • the invention relates to conical spiral Springs and consists primarilj,7 in winding the spring with such a pitch, that all of the spring threads come at least approximately simultaneously to abut on one abutment of the spring, when the ultimate load is attained.
  • the spring is wound with such a pitch, that the distance of each point, e. g. the point P, of the narrow surface al turned toward the spring ⁇ abutment B, of the steel band A forming the spring in unloaded condition, from this abutment as, e. g. a is equal to the distance this point has to travel under the action of the ultimate load of the spring.
  • the spring steel bands may be used which are either of substantially uniform width and varying thickness or of varying width and uniform thickness or, finally, of both varying width and varying thickness.
  • the spring is manufactured from a steel band that possesses a substantially uniform width and a thickness varving in such a. nianner, that the coils of the spring, except its unelastic end portions, increase in thickness from the inmost coil to inclusively the outmost one.
  • a spring of this construction occupies the smallest space.
  • a conical spiral spring having a graduated cross section decreasing from its base to its tip with said graduated cross section so related to the pitch with which said spring is wound that the coils thereof abut on one spring abutment at least approximately simultaneously, upon the ultimate load being exerted.
  • a conical spiral spring having a graduat-ed cross section decreasing from its base to its tip with said graduated cross section so related to the pitch with which said spring is wound that the coils thereof abuton one spring abutment at least approximately simultaneously, upon the ultimate load being exerted, the pitch being such that each of said coils of said spring in loaded condition is displaced an equal fraction of the distance of said coils from the one spring abutment in the rest position, said fraction being the ratio of the load applied to effect said displacement to the ultimate load.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)
US297209A 1927-08-29 1928-08-03 Conical spiral spring Expired - Lifetime US1892339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE296343T 1927-08-29

Publications (1)

Publication Number Publication Date
US1892339A true US1892339A (en) 1932-12-27

Family

ID=31894132

Family Applications (1)

Application Number Title Priority Date Filing Date
US297209A Expired - Lifetime US1892339A (en) 1927-08-29 1928-08-03 Conical spiral spring

Country Status (4)

Country Link
US (1) US1892339A (enrdf_load_html_response)
BE (1) BE353362A (enrdf_load_html_response)
FR (1) FR658731A (enrdf_load_html_response)
GB (1) GB296343A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1557333A4 (en) * 2003-09-01 2005-08-17 Matsushita Electric Ind Co Ltd BRAKING SYSTEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1557333A4 (en) * 2003-09-01 2005-08-17 Matsushita Electric Ind Co Ltd BRAKING SYSTEM
US20050269871A1 (en) * 2003-09-01 2005-12-08 Kiyoshi Saito Brake system

Also Published As

Publication number Publication date
BE353362A (enrdf_load_html_response)
FR658731A (fr) 1929-06-19
GB296343A (enrdf_load_html_response) 1928-11-22

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