WO1996007035A1 - Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action - Google Patents

Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action Download PDF

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Publication number
WO1996007035A1
WO1996007035A1 PCT/NL1995/000289 NL9500289W WO9607035A1 WO 1996007035 A1 WO1996007035 A1 WO 1996007035A1 NL 9500289 W NL9500289 W NL 9500289W WO 9607035 A1 WO9607035 A1 WO 9607035A1
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WO
WIPO (PCT)
Prior art keywords
flexible shock
absorber according
flexible
absorber
shock
Prior art date
Application number
PCT/NL1995/000289
Other languages
French (fr)
Inventor
Hendrik Lenten
Original Assignee
Hendrik Lenten
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 Hendrik Lenten filed Critical Hendrik Lenten
Priority to AU32665/95A priority Critical patent/AU3266595A/en
Publication of WO1996007035A1 publication Critical patent/WO1996007035A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
    • 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
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall

Definitions

  • the invention relates to a flexible hydraulic/pneumatic spring action system, made from reinforced rubber or plastic or any other flexible material, in which the hydraulic compartment is functioning as the power or load transmission element and the pneumatic compartment takes care for the real spring action, together acting as a universal integrated shock and vibration absorber for general purposes, for example to decrease vibration on engine supports and building foundations.
  • Another, even more importent application to be mentioned is the shock- free foundation of houses, buildings and bridges with regard to earthquakes.
  • the so called torus-buffer as described in the USA-patent 4,887,398 does provide for trembling isolating in all horizontal directions, in vertical direction there is no compensation at all.
  • the additional pneumatic compartment is intended to amortize the vertical tremblings also, at least to a certain extent, sufficient to prevent the building under consideration from collapsing in cases where the aforesaid defects or damagings are playing an important part in the proces leading to the final destruction.
  • the hydraulic compartment consists of two parallel discs, in their position of rest concentric, along the circumference connected to each other by means of a torus in which the required nozzles for filling, venting etcetera are placed.
  • Normaly the filling of the hydraulic compartment shall be preceded by pressurizing the inner flexible torus shaped compartment by any gas but preferably an innert gas; for example nitrogen.
  • the pressure shalloccasionee an equilibrium situation with regard to the hydraulic pressure inside the outer compartment as long as the system considered as a whole remains in its position of rest, while such position will be fully controled by the quotient of pneumatic spring load and the disc area.
  • a very important appliance of the pneumatic spring action according to the invention is the combination with the buffe serving as protective device with regard to earthquakes, clearly discribed in the USA-patent 4,887,398, in this manner creating a buffer having the ability to compensate the vertical and the horizontal soil movements as well.
  • Fig. 1 represents a cross section of the flexible shock- absorber in its equilibrium position of rest.
  • Fig. 2 represents the same section after the upper disc became lowerated and the inner compartment pushed in.
  • Fig. 3 represents a cross section of the venting channels.
  • Fig. 4 represents packaging of several flexible shock absorbers.
  • Fig. 5 the same, but combined with a steel coil-spring.
  • Fig. 6 represents a cross section of the so called hydrau ⁇ lic torus shaped eathquake buffer, discribed in the USA-patent 4,887,398, combined with the flexible shock absorber according to this invention, together applicable for general purpose beneath or within the foundations of buildings in order to eliminate forces of seismic origin, irrespective its direction, amplitude and frequency.
  • Fig. 7 represents a cross section of the aforesaid torus- buffer with the pneumaticly activated spring cushion chamber inside, in this combination having the character of a vertical compensator and horizontal isolator when an earthquake takes place beneath the supported building.
  • Fig. 8 represents the application of the flexible shock 110 absorbers for bumpers in an upper and a front view, as far as the absorber itself is concerned, consisting of three elements to comply with asymetrical load during colliding.
  • Fig. 9 represents an upper view in detail, just to indicate the cross section, represented by Fig. 10.
  • 115 Fig. 11 in conclusion represents the flexible shock-absorber according to the invention functioning as a vibration compensator for engine suspension and support, especially for motor-vehicles.
  • the flexible shock-absorber according to the invention is 120 composed from two different compartments, to wit:
  • drum-like liquid compartment 1 limited by an upper disc 2, parallel with the lower disc 3 and encircled by 4, a torus in such a way that drum and torus can communicate freely.
  • Both, drum and torus(considered as a whole and 125 further referred to as "hydraulic compartment") are made from a ' flexible material, reinforced with inlayers having a minimum elongation within the acting pressure and temperatuur range.
  • a gascompartment 5 is 130 positioned, which compartment consists of a hollow ring 6, made from flexible material as well.
  • This hollow ring 6 is connected to tube 7, protruding the torus wall 4 and provided with a valve 8.
  • a filling nozzle 9 is fitted; the liquid nozzle.
  • the upper plate 2 is provided with a venting channel 10, sub-channels 11 and nozzle 12.
  • the gascompartment 5 inside the hollow ring 6 becomes filled with gas through nozzle 7 and valve 8, preferably an inert gas, for example nitrogen, to a pressure at least exceeding the expected hydraulic pressure under rest
  • 155 invention is used as an a-seismic protective device to protect buidings and other structures from damaging during severe earthquakes after the tremblings are over and the disturbed sand skeleton according to the Dutch patent application 9401418 must be reformed; in other words:
  • Lifting the supported structure can easily be done by pressurizing the gascompartment instead of temporally extra water supply which takes much more time and energy and besides: more complicated with regard to controle as well,
  • Compartment 5 can be fitted inside the aforesaid torus-buffer 17 when applied for earthquake isolating of structures 16. Hydraulic cylinder 18 can be considered as the replacement reaction force for the stacked absorbers as long as the soil

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention relates to a flexible shock-absorber, having two different and separate chambers (1, 5); one for bearing the load-being filled with any liquid but preferably water and called 'hydraulic chamber' (1) and the other intended for spring-acting or compensating, in such a way that the gas-compartment (5) is fully immersed in the liquid, effecting pressure equalizing with regard to the partition wall. The invention can be applied for several purposes and for example adaptable to the so called torus-buffer as described in the USA-patent 4,887,398. Furthermore in all cases where large amounts of energy dissipation within a short period of time is desirable or necessary, application will be very attractive too, for example to absorb the collision energy acting when cars collide with each other; likewise dodgems.

Description

Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action.
The invention relates to a flexible hydraulic/pneumatic spring action system, made from reinforced rubber or plastic or any other flexible material, in which the hydraulic compartment is functioning as the power or load transmission element and the pneumatic compartment takes care for the real spring action, together acting as a universal integrated shock and vibration absorber for general purposes, for example to decrease vibration on engine supports and building foundations. Another, even more importent application to be mentioned is the shock- free foundation of houses, buildings and bridges with regard to earthquakes. Although the so called torus-buffer as described in the USA-patent 4,887,398 does provide for trembling isolating in all horizontal directions, in vertical direction there is no compensation at all. In cases where failures in the supported structure occur, the general reasoning saying that buildings should have enough strength to withstand earthquake accelerations perpendicular with the ground(plane) level, does not hold good since such failures are able to cause unpredictable deportment, not seldom resulting in calamities.
The additional pneumatic compartment is intended to amortize the vertical tremblings also, at least to a certain extent, sufficient to prevent the building under consideration from collapsing in cases where the aforesaid defects or damagings are playing an important part in the proces leading to the final destruction.
The hydraulic compartment consists of two parallel discs, in their position of rest concentric, along the circumference connected to each other by means of a torus in which the required nozzles for filling, venting etcetera are placed. Normaly the filling of the hydraulic compartment shall be preceded by pressurizing the inner flexible torus shaped compartment by any gas but preferably an innert gas; for example nitrogen. The pressure shall garantee an equilibrium situation with regard to the hydraulic pressure inside the outer compartment as long as the system considered as a whole remains in its position of rest, while such position will be fully controled by the quotient of pneumatic spring load and the disc area.
Normally potable water can be used as hydraulic liquid, however more reproducable data will be obtainable when gas-free water is used instead. Exceeding the equilibrium pressure - that means the upper disc is moving downwards - results in pushing in the inner flexible torus shaped compartment until a new equilibrium will be achieved. This transformation will be clover-leaf shaped(cross sectionally ! ) when the wall thickness converges a little. The required spring balance is defined by the gas pressure only, provided both compartment are produced from non- elastic material. Normally rubber reinforced with canvas inlayers does meet this condition, but much stonger and less elastic fibres like polyethylene with an ultra high molecula weight or carbon fibres are also being considered for this purpose. Wrapping the compartments with the aforesaid resently developped extremely strong fibres is another option; maybe preferably because of moderated adhesion of such materials to rubber. A very important appliance of the pneumatic spring action according to the invention is the combination with the buffe serving as protective device with regard to earthquakes, clearly discribed in the USA-patent 4,887,398, in this manner creating a buffer having the ability to compensate the vertical and the horizontal soil movements as well.
Since extremely high frequence vibrations can be damped by the shoch absorber according to this invention also, it lend itself excellent to vibration free installation of sound equipment . One of the most remarkable advantages of the pneumatic spring action compared with coil-springs is undoubtedly the possibility to controle the spring-stroke and reaction force continuously, eventually remote controlled! ... Application of the flexible shock-absorber for bumpers to amortize collision energy is another possibility, since this energy will be converted into heat due to the adiabatic physical change during a short periode of time. Although the retardation will be comparable with those effectuated by crease zones, the destructive rusult shall reveal out as neglectable since all kinetic energy is changed into thermal energy. The occupants of cars equiped with bumpers according to this invention do have a increased chance of survival because of less danger from crashed parts in case of head-on collision. When air bags are available the injuring chance can be even reduced to zero in most cases.
One embodiment of the invention shall be explained by way of example, with reference to the accompanying drawing, in which:
Fig. 1 represents a cross section of the flexible shock- absorber in its equilibrium position of rest.
Fig. 2 represents the same section after the upper disc became lowerated and the inner compartment pushed in. Fig. 3 represents a cross section of the venting channels. Fig. 4 represents packaging of several flexible shock absorbers.
Fig. 5 the same, but combined with a steel coil-spring. Fig. 6 represents a cross section of the so called hydrau¬ lic torus shaped eathquake buffer, discribed in the USA-patent 4,887,398, combined with the flexible shock absorber according to this invention, together applicable for general purpose beneath or within the foundations of buildings in order to eliminate forces of seismic origin, irrespective its direction, amplitude and frequency. Fig. 7 represents a cross section of the aforesaid torus- buffer with the pneumaticly activated spring cushion chamber inside, in this combination having the character of a vertical compensator and horizontal isolator when an earthquake takes place beneath the supported building.
Fig. 8 represents the application of the flexible shock 110 absorbers for bumpers in an upper and a front view, as far as the absorber itself is concerned, consisting of three elements to comply with asymetrical load during colliding.
Fig. 9 represents an upper view in detail, just to indicate the cross section, represented by Fig. 10. 115 Fig. 11 in conclusion represents the flexible shock-absorber according to the invention functioning as a vibration compensator for engine suspension and support, especially for motor-vehicles.
The flexible shock-absorber according to the invention is 120 composed from two different compartments, to wit:
One drum-like liquid compartment 1, limited by an upper disc 2, parallel with the lower disc 3 and encircled by 4, a torus in such a way that drum and torus can communicate freely. Both, drum and torus(considered as a whole and 125 further referred to as "hydraulic compartment") are made from a' flexible material, reinforced with inlayers having a minimum elongation within the acting pressure and temperatuur range.
Inside the chamber or compartment 1 a gascompartment 5 is 130 positioned, which compartment consists of a hollow ring 6, made from flexible material as well.
This hollow ring 6 is connected to tube 7, protruding the torus wall 4 and provided with a valve 8.
In the bottom or ground plate of the hydraulic compartment 135 referred to as the lower disc 3, a filling nozzle 9 is fitted; the liquid nozzle.
The upper plate 2 is provided with a venting channel 10, sub-channels 11 and nozzle 12.
To put the flexible shock absorber into operation, the 140 following handlings are to be executed, to wit:
The gascompartment 5 inside the hollow ring 6 becomes filled with gas through nozzle 7 and valve 8, preferably an inert gas, for example nitrogen, to a pressure at least exceeding the expected hydraulic pressure under rest
145 conditions, acting inside the hydraulic compartment. During filling compartment 5, venting is allowed via sub-channels 11, main channel 10 and valve 12, eventually by means of a volume measurement instrument in order to avoid bulging of liquid compartment 1 after it has been
150 filled.
All other applications as clearly indicated by means of the figures do have the same working principle. A special advantage not mentioned in the above is the possibility to elevate the supported building when the
155 invention is used as an a-seismic protective device to protect buidings and other structures from damaging during severe earthquakes after the tremblings are over and the disturbed sand skeleton according to the Dutch patent application 9401418 must be reformed; in other words:
160 being prepared for the next quake! ...
Lifting the supported structure can easily be done by pressurizing the gascompartment instead of temporally extra water supply which takes much more time and energy and besides: more complicated with regard to controle as well,
165 for it is almost impossible to avoid vortex during liquid filling, causing the sand to remain in suspension, at least retarding sedimentation.
Upper fulcrum 13 and lower fulcrum 14 are required when the flexible shock-absorbers are stacked, wether or not
170 combined with a coil-spring 15.
Compartment 5 can be fitted inside the aforesaid torus-buffer 17 when applied for earthquake isolating of structures 16. Hydraulic cylinder 18 can be considered as the replacement reaction force for the stacked absorbers as long as the soil
175 beneath the torus-buffers is in rest and becomes depressu- rized as soon as an earthquake takes place. Furthermore this cylinder 18 provides for vertical quidance, directing the stroke of the structure 16, avoiding shear stress in the shock-absorber shell.

Claims

C L A I M S
1. Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action, also applicable as vibration eliminator, made from flexible material such as canvas reinforced rubber, c h a r a c t e r i z e d i n that the outer hydraulic compartment is functioning as a burden supporting element, whereas the inner pneumatic compartment provides for the required resiliency, together acting as an integrated universal buffer for deadening concussion, tremblings, shocks and vibrations, adjustable in its rest position and during operation as well.
2. Flexible shock-absorber according to jclaim 1, c h a r a c t e r i z e d i n that the gas pressure inside the hollow ring can be adjust continuously.
3. Flexible shock-absorber according to claim 1, c h a r a c t e r i z e d i n that several absorbers are stacked, functioning as an enhanced pneumatic spring.
4. Flexible shock-absorber according to claim 3, c h a r a c t e r i z e d i n that the stacked absorbers are fitted inside a coil(spring) .
5. Flexible shock-absorber according to claims 3 and 4, c h a r a c t e r i z e d i n that the stacked absorbers are combined with the so called "Torus Buffer", according the USA-patent 4,887,398, granted 19 December 1989 in the name of Hendrik Lenten, in this way the torus-buffer providing with vertical soil compensation also, being an advantage during severe earthquakes, while the stacked absorbers are functioning only during eathquakes since an hydraulic cylinder takes care for pressure retaining as long as the soil beneath the supported construction is in rest and will lose its reaction force as soon as an earthquake takes place, wether or not by artificial intelligence controlled.
6. Flexible shock-absorber according to claims 1,2,3,4 and 5, c h a r a c t e r i z e d i n that non-flexible material is used for reinforcement.
7. Flexible shock-absorber according to claim 6, c h a r a c t e r i z e d i n that the upper and/ore lower plate is backed with a dish-shaped metallic disc or plastic disc, in this performance suited for being fitted beneath the fundations of engines, for example in cars.
8. Flexible shock-absorber according to claim 7, c h a r a c t e r i z e d i n that one or more springs(coils) are fitted between the backed discs, pressure relieving the pneumatic system in its position of rest.
9. Flexible shock-absorber according to claims 6 and 7, c h a r a c t e r i z e d i n that the springs are fitted outside the main absorber.
10. Flexible shock-absorber according to the aforesaid claims 1 up to and included 5, c h a r a c t e r i z e d i n that the torus-shaped wall is vulcanized to non-flexible discs or bars.
11. Flexible shock-absorber according to one or more of the aforesaid claims, c h a r a c t e r i z e d i n that stacked absorbers are separated from each other by means of air-cylinders or air-cushions of any standard type.
12. Flexible shock-absorber according to claim 1, c h a r a c t e r i z e d i n that the hydraulic compartment is filled with any elastic material such as sponge-rubber.
13. Flexible shock-absorber according to claim 1, c h a r a c t e r i z e d i n that the hydraulic compartment is partially or completely filled with sand, powderlike material or granulated stuff.
14. Flexible shock-absorber according to claim 6, c h a r a c t e r i z e d i n that the absorbers are provided with male and female connection seats in order to facilitate concentric 75 positioning.
15. Flexible shock-absorber according to claim 3 and/or 4, c h a r a c t e r i z e d i n that a forced vertical stroke is provided by means of an hydraulic cylinder or gliding construction. 80 16. Flexible shock-absorber according to claim 1, c h a r a c t e r i z e d i n that the hydraulic and pneumatic compartments are in accordance with the torus-buffer as described in the
USA-patent 4,887,398, wherin the pneumatic compartment 85 is functioning as a compensator to adjust the degree of consolidation inside the sand-skeleton as described in the Dutch patent application 9401418, allowing a small vertical movement as well but not applicated for that purpose in general. 90
17. Flexible shock-absorber according to claim 1, c h a r a c t e r i z e d i n that it is non-circular and designed to fit in bumpers for cars, trains etcetera.
18. Flexible shock-absorber according to claim 16, 95 c h a r a c t e r i z e d i n that said buffer is designed to act as vibration-free suspension of engines and bridges.
19. Flexible shock-absorber according to claims 1 up to and included 18,
100 c h a r a c t e r i z e d i n that the absorber is designed to eliminate vibrations acting in loud-speaker systems and for that special purpose very small dimensioned.
PCT/NL1995/000289 1994-08-31 1995-08-30 Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action WO1996007035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU32665/95A AU3266595A (en) 1994-08-31 1995-08-30 Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9401417A NL9401417A (en) 1994-08-31 1994-08-31 Pneumatic hydraulic shock and vibration damper.
NL9401417 1994-08-31

Publications (1)

Publication Number Publication Date
WO1996007035A1 true WO1996007035A1 (en) 1996-03-07

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PCT/NL1995/000289 WO1996007035A1 (en) 1994-08-31 1995-08-30 Flexible shock-absorber provided with hydraulic power transmission and pneumatic spring action

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AU (1) AU3266595A (en)
NL (1) NL9401417A (en)
WO (1) WO1996007035A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025020A1 (en) * 2000-09-22 2002-03-28 Innovacion Y Diseño Orovay, S.L. Modular anti-seismic protection array that can be used in the preservation of buildings and the like
DE102008017703A1 (en) * 2008-04-08 2009-10-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Spring bellows comprises adjustment unit, which is formed to reduce inner volume of spring bellows, and to increase spring rigidity of spring bellows, and spring bellows comprises effective bearing surface and bellows height

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104631395B (en) * 2015-01-16 2016-08-24 长春工程学院 A kind of hydraulic steel gate anti-collision structure

Citations (8)

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Publication number Priority date Publication date Assignee Title
FR1059780A (en) * 1951-08-11 1954-03-29 Pneumatic tires, shock absorbers or the like
FR2188736A5 (en) * 1972-06-01 1974-01-18 Kleber Colombes Rubber springs for compressive loads - comprising stackable modular ele-ments with partially divergent surfaces offering progressive resistance
FR2384996A1 (en) * 1977-03-22 1978-10-20 Trenkamp & Gehle SUSPENSION DEVICE, IN PARTICULAR FOR VEHICLE AXLES
DE3611809A1 (en) * 1986-04-08 1987-10-15 Tang Shengwei Arrangement for protecting buildings against earthquakes
US4887398A (en) * 1986-12-22 1989-12-19 Hendrik Lenten Hydraulic buffer to protect buildings against earthquakes
JPH03107630A (en) * 1989-09-20 1991-05-08 Hitachi Ltd Air spring
JPH04316736A (en) * 1991-04-16 1992-11-09 Toyoda Gosei Co Ltd Liquid seal vibration isolating device
JPH0587179A (en) * 1991-09-26 1993-04-06 Kurashiki Kako Co Ltd Liquid-filled vibration control supporting device

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Publication number Priority date Publication date Assignee Title
FR1059780A (en) * 1951-08-11 1954-03-29 Pneumatic tires, shock absorbers or the like
FR2188736A5 (en) * 1972-06-01 1974-01-18 Kleber Colombes Rubber springs for compressive loads - comprising stackable modular ele-ments with partially divergent surfaces offering progressive resistance
FR2384996A1 (en) * 1977-03-22 1978-10-20 Trenkamp & Gehle SUSPENSION DEVICE, IN PARTICULAR FOR VEHICLE AXLES
DE3611809A1 (en) * 1986-04-08 1987-10-15 Tang Shengwei Arrangement for protecting buildings against earthquakes
US4887398A (en) * 1986-12-22 1989-12-19 Hendrik Lenten Hydraulic buffer to protect buildings against earthquakes
JPH03107630A (en) * 1989-09-20 1991-05-08 Hitachi Ltd Air spring
JPH04316736A (en) * 1991-04-16 1992-11-09 Toyoda Gosei Co Ltd Liquid seal vibration isolating device
JPH0587179A (en) * 1991-09-26 1993-04-06 Kurashiki Kako Co Ltd Liquid-filled vibration control supporting device

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 298 (M - 1141) 29 July 1991 (1991-07-29) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 139 (M - 1385) 22 March 1993 (1993-03-22) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 423 (M - 1458) 6 August 1993 (1993-08-06) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002025020A1 (en) * 2000-09-22 2002-03-28 Innovacion Y Diseño Orovay, S.L. Modular anti-seismic protection array that can be used in the preservation of buildings and the like
ES2169683A1 (en) * 2000-09-22 2002-07-01 Innovacion Y Diseno Orovay S L Modular anti-seismic protection array that can be used in the preservation of buildings and the like
DE102008017703A1 (en) * 2008-04-08 2009-10-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Spring bellows comprises adjustment unit, which is formed to reduce inner volume of spring bellows, and to increase spring rigidity of spring bellows, and spring bellows comprises effective bearing surface and bellows height

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NL9401417A (en) 1996-04-01
AU3266595A (en) 1996-03-22

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