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WO1992001171A3 - Spring device - Google Patents

Spring device Download PDF

Info

Publication number
WO1992001171A3
WO1992001171A3 PCT/GB1991/001162 GB9101162W WO9201171A3 WO 1992001171 A3 WO1992001171 A3 WO 1992001171A3 GB 9101162 W GB9101162 W GB 9101162W WO 9201171 A3 WO9201171 A3 WO 9201171A3
Authority
WO
WIPO (PCT)
Prior art keywords
piston
chamber
cylinder
spring device
operable
Prior art date
Application number
PCT/GB1991/001162
Other languages
French (fr)
Other versions
WO1992001171A2 (en
Inventor
Linval Rodney
Original Assignee
Linval Rodney
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 Linval Rodney filed Critical Linval Rodney
Publication of WO1992001171A2 publication Critical patent/WO1992001171A2/en
Publication of WO1992001171A3 publication Critical patent/WO1992001171A3/en
Priority to GB939300376A priority Critical patent/GB9300376D0/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • 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
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
    • 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
    • F16F5/00—Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling action; Combinations of devices including liquid springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

A spring device (10) comprises a first piston (12) operable within a first cylinder (14), and a second piston (16) operable within a second cylinder (18). The interiors of the two cylinders (14, 18) are in communication such that a chamber (22) comprising pressurised gas is formed between the first piston (12) and the second piston (16). A second chamber (28) comprising pressurised gas is formed between the second piston (16) and the second cylinder (18). In use when a force is applied to move the first piston (12) into the first cylinder (14), the movement of the first piston (12) is resisted by the fluid in the chamber (22). This, in turn, causes the second piston to move against the resistance of the gas in the second chamber (28). The result is a resilient resistance to the depression of the first piston (12) and a storage of energy in the device. When the force is alleviated, the resilience of the device (10) urges the pistons (12, 16) to their rest positions.
PCT/GB1991/001162 1990-07-12 1991-07-12 Spring device WO1992001171A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB939300376A GB9300376D0 (en) 1990-07-12 1993-01-11 Spring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909015337A GB9015337D0 (en) 1990-07-12 1990-07-12 Spring device
GB9015337.0 1990-07-12

Publications (2)

Publication Number Publication Date
WO1992001171A2 WO1992001171A2 (en) 1992-01-23
WO1992001171A3 true WO1992001171A3 (en) 1992-06-11

Family

ID=10678982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/001162 WO1992001171A2 (en) 1990-07-12 1991-07-12 Spring device

Country Status (2)

Country Link
GB (2) GB9015337D0 (en)
WO (1) WO1992001171A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9136675B2 (en) 2009-10-09 2015-09-15 Kabushiki Kaisha Toshiba Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof
US11845505B2 (en) 2017-06-30 2023-12-19 Sram, Llc Seat post assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE522293T1 (en) * 2008-10-14 2011-09-15 Safan Bv METHOD AND DEVICE FOR CALIBRATION OF A PRESS BRAKE
US10549803B2 (en) 2017-06-30 2020-02-04 Sram, Llc Seat post assembly
CN107598006B (en) * 2017-10-24 2023-08-04 山西新环粉末冶金有限公司 Piston valve line molding press with finished product collecting function
FR3108954B1 (en) 2020-04-03 2023-11-03 Commissariat Energie Atomique Passive piston compression system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388203A (en) * 1932-02-18 1933-02-23 Rudolph William Glasner Improvements relating to sheet metal working presses
GB559581A (en) * 1939-08-24 1944-02-25 George Herbert Dowty Improvements relating to shock absorbers, and aircraft landing gear
GB671925A (en) * 1948-07-23 1952-05-14 Electro Hydraulics Ltd Improvements in or relating to shock absorbers
US2925262A (en) * 1956-09-05 1960-02-16 George F Wales Liquid spring
GB881242A (en) * 1959-02-13 1961-11-01 Paul Hollis Taylor Liquid spring and shock-strut suspensions for aircraft and vehicles
US3202411A (en) * 1963-10-11 1965-08-24 Elmer F Heiser Fluid spring system
US3944198A (en) * 1973-11-30 1976-03-16 Aisin Seiki Kabushiki Kaisha Impact absorber
EP0052782A2 (en) * 1980-11-25 1982-06-02 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Suspension system for vehicles
DE3803577C1 (en) * 1988-02-06 1989-06-29 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De Hydraulic end stop

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388203A (en) * 1932-02-18 1933-02-23 Rudolph William Glasner Improvements relating to sheet metal working presses
GB559581A (en) * 1939-08-24 1944-02-25 George Herbert Dowty Improvements relating to shock absorbers, and aircraft landing gear
GB671925A (en) * 1948-07-23 1952-05-14 Electro Hydraulics Ltd Improvements in or relating to shock absorbers
US2925262A (en) * 1956-09-05 1960-02-16 George F Wales Liquid spring
GB881242A (en) * 1959-02-13 1961-11-01 Paul Hollis Taylor Liquid spring and shock-strut suspensions for aircraft and vehicles
US3202411A (en) * 1963-10-11 1965-08-24 Elmer F Heiser Fluid spring system
US3944198A (en) * 1973-11-30 1976-03-16 Aisin Seiki Kabushiki Kaisha Impact absorber
EP0052782A2 (en) * 1980-11-25 1982-06-02 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Suspension system for vehicles
DE3803577C1 (en) * 1988-02-06 1989-06-29 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De Hydraulic end stop

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9136675B2 (en) 2009-10-09 2015-09-15 Kabushiki Kaisha Toshiba Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof
US9142941B2 (en) 2009-10-09 2015-09-22 Kabushiki Kaisha Toshiba Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof
US9178339B2 (en) 2009-10-09 2015-11-03 Kabushiki Kaisha Toshiba Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof
US9570891B2 (en) 2009-10-09 2017-02-14 Kabushiki Kaisha Toshiba Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof
US11845505B2 (en) 2017-06-30 2023-12-19 Sram, Llc Seat post assembly

Also Published As

Publication number Publication date
GB9300376D0 (en) 1993-03-10
WO1992001171A2 (en) 1992-01-23
GB9015337D0 (en) 1990-08-29

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