WO2014030557A1 - ダンパ - Google Patents
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- Publication number
- WO2014030557A1 WO2014030557A1 PCT/JP2013/071690 JP2013071690W WO2014030557A1 WO 2014030557 A1 WO2014030557 A1 WO 2014030557A1 JP 2013071690 W JP2013071690 W JP 2013071690W WO 2014030557 A1 WO2014030557 A1 WO 2014030557A1
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- WIPO (PCT)
- Prior art keywords
- piston
- passage
- cylinder
- tank
- side chamber
- Prior art date
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Classifications
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- 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
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
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- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/185—Bitubular units
- F16F9/187—Bitubular units with uni-directional flow of damping fluid through the valves
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- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
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- 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
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
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- 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
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/483—Arrangements for providing different damping effects at different parts of the stroke characterised by giving a particular shape to the cylinder, e.g. conical
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- 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
- F16F9/32—Details
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
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- 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
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
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- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- 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
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
- F16F9/364—Combination of sealing and guide arrangements for piston rods of multi-tube dampers
Definitions
- the present invention relates to a damper.
- a general damper for example, a cylinder, a piston that is slidably inserted into the cylinder, a rod that is inserted into the cylinder and connected to the piston, and a rod that is partitioned in the cylinder by the piston It is composed of a side chamber and a piston side chamber, and a damping passage that communicates the rod side chamber and the piston side chamber, and exhibits a damping force in accordance with an expansion and contraction operation in which the piston is displaced in the axial direction with respect to the cylinder. Vibration is suppressed.
- the above damper is designed to exhibit a damping force in a direction to suppress expansion / contraction during the stroke, whether it is extended or contracted. For example, in a damper used for damping a building, etc. Depending on the stroke position, if the damping force is exerted, the vibration of the building may not be reduced. For this reason, for example, in the damper described in JP2007-321909A, a bypass path that bypasses the damping valve is opened at the stroke end so that the rod side chamber and the piston side chamber communicate with each other.
- the above damper can change the damping force not only according to the stroke position but also depending on the stroke direction.
- the structure of the valve is complicated and large, the entire damper becomes large, and the cost is high. There is a problem of being an economy.
- the present invention has been made in view of the above problems, and an object thereof is to provide a small and low-cost damper.
- a damper includes a cylinder, a piston that is slidably inserted into the cylinder, a rod that is inserted into the cylinder and connected to the piston, A rod side chamber and a piston side chamber defined by the piston, a tank, an extension side passage communicating the rod side chamber and the tank, a pressure side passage communicating the piston side chamber and the tank, and the extension side passage
- An extension side damping valve that provides resistance to the flow of liquid from the rod side chamber toward the tank, and is provided in parallel with the extension side damping valve in the middle of the extension side passage.
- a first check valve that allows only the passage of liquid toward the side chamber, and is provided in the middle of the pressure side passage, and provides resistance to the flow of liquid from the piston side chamber toward the tank.
- a pressure-side damping valve a second check valve provided in parallel with the pressure-side damping valve in the middle of the pressure-side passage, and allowing only passage of liquid from the tank to the piston-side chamber, and the tank and the cylinder And a center passage communicating with the damper.
- FIG. 1 is a schematic view of a damper according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating a state in which the damper according to the embodiment of the present invention is interposed between the vibration-controlled object and the vibration input side portion.
- FIG. 3 is a diagram illustrating a state where the damper according to the embodiment of the present invention exhibits a damping force and a state where the damper does not exhibit a damping force.
- FIG. 4 is a diagram showing the trajectories of relative displacement and relative speed between the vibration-controlled object to which the damper according to the embodiment of the present invention is applied and the vibration input side portion.
- FIG. 5 is a schematic view showing a modification of the damper according to the embodiment of the present invention.
- the damper 1 includes a cylinder 2, a piston 3 that is slidably inserted into the cylinder 2, a rod 4 that is inserted into the cylinder 2 and connected to the piston 3, and the cylinder 2
- the expansion side damping valve 10 is provided in the middle of the expansion side passage 8 and provides resistance to the flow of liquid from the rod side chamber 5 toward the tank 7, and is provided in parallel with the expansion side attenuation valve 10 in the middle of the expansion side passage 8.
- the first check valve 11 that allows only the passage of liquid from the tank 7 to the rod side chamber 5 and the pressure side damping that is provided in the middle of the pressure side passage 9 and provides resistance to the flow of liquid from the piston side chamber 6 to the tank 7
- Valve 12 and pressure A second check valve 13 provided in parallel with the pressure side damping valve 12 in the middle of the passage 9 and allowing only liquid to pass from the tank 7 toward the piston side chamber, and a center passage 14 communicating the tank 7 and the cylinder 2.
- the rod side chamber 5 and the piston side chamber 6 are filled with a liquid such as hydraulic oil
- the tank 7 is filled with a gas in addition to the liquid.
- the tank 7 need not be in a pressurized state by compressing and filling the gas, but may be pressurized.
- the cylinder 2 has a cylindrical shape, one end is closed by a lid 15, and an annular rod guide 16 is attached to the other end.
- the rod 4 is slidably inserted into the rod guide 16.
- the rod 4 has one end protruding out of the cylinder 2 and the other end connected to a piston 3 that is also slidably inserted into the cylinder 2.
- the space between the outer periphery of the rod 4 and the rod guide 16 is sealed by a seal member (not shown), whereby the cylinder 2 is hermetically sealed.
- the rod side chamber 5 and the piston side chamber 6 partitioned by the piston 3 in the cylinder 2 are filled with hydraulic oil as a liquid.
- an intermediate cylinder 17 that forms a center passage 14 with an annular gap between the cylinder 2 is provided on the outer periphery of the cylinder 2, and a tank is provided with an annular gap between the intermediate cylinder 17 on the outer periphery of the intermediate cylinder 17. 7 is provided. Both ends of the intermediate cylinder 17 and the outer cylinder 18 are closed by the lid 15 and the rod guide 16.
- the end portion of the rod 4 that protrudes outside the cylinder 2 and the lid 15 that closes one end portion of the cylinder 2, the intermediate cylinder 17, and the outer cylinder 18 include a mounting portion (not shown). Can be interposed between objects to be controlled, for example, between a building and a foundation fixed to the ground, or between a beam on the upper floor and a beam on the lower floor of the building.
- the rod side chamber 5 and the piston side chamber 6 are communicated with each other by an extension side relief passage 19 and a pressure side relief passage 20 provided in the piston 3.
- an extension side relief passage 19 In the middle of the extension side relief passage 19, when the pressure in the rod side chamber 5 exceeds the pressure in the piston side chamber 6 by a predetermined amount, the valve opens to open the extension side relief passage 19, and the pressure in the rod side chamber 5 is transferred to the piston side chamber 6.
- An extension side relief valve 21 is provided for relief.
- the valve is opened to open the pressure side relief passage 20, and the pressure in the piston side chamber 6 is transferred to the rod side chamber 5.
- a pressure relief valve 22 is provided for relief. Installation of the extension side relief valve 21 and the pressure side relief valve 22 is optional, but by providing them, the pressure in the cylinder 2 can be prevented from becoming excessive and the damper 1 can be protected.
- the rod guide 16 is provided with an extension side passage 8 that connects the rod side chamber 5 and the tank 7, an extension side damping valve 10, and a first check valve 11.
- the expansion side damping valve 10 is a passive damping valve, and allows only the flow of liquid from the rod side chamber 5 toward the tank 7 while giving resistance to the flow of liquid passing therethrough.
- the first check valve 11 allows only the passage of liquid from the tank 7 toward the rod side chamber 5.
- the lid 15 is provided with a pressure side passage 9 that communicates the piston side chamber 6 and the tank 7, a pressure side damping valve 12, and a second check valve 13.
- the pressure-side damping valve 12 is a passive damping valve, and only allows the flow of liquid from the piston-side chamber 6 toward the tank 7 while giving resistance to the flow of liquid passing therethrough.
- the second check valve 13 allows only the passage of liquid from the tank 7 toward the piston side chamber 6.
- a through hole 2 a that communicates the inside and outside of the cylinder 2 is provided at a position facing the piston 3 of the cylinder 2, in this case, in the center of the cylinder 2.
- the neutral position of the piston 3 is not necessarily limited to the center of the cylinder 2 and can be set arbitrarily. In the present embodiment, the position where the through hole 2 a is formed in the cylinder 2 coincides with the stroke center of the piston 3.
- the lid 15 is provided with an annular gap formed between the cylinder 2 and the intermediate cylinder 17 and a communication path 15 a that communicates with the tank 7.
- the center passage 14 is formed by the annular gap between the cylinder 2 and the intermediate cylinder 17, the through hole 2 a, and the communication path 15 a, except that the through hole 2 a is closed facing the piston 3.
- the inside of the cylinder 2 communicates with the tank 7 through the center passage 14.
- an on-off valve 23 that can switch between the opened state and the blocked state of the center passage 14.
- the on-off valve 23 includes a valve main body 24 having a communication position 24a for opening the center passage 14 and a shut-off position 24b for shutting off the center passage 14, a spring 25 for biasing the valve main body 24 and positioning it at the shut-off position 24b, And a solenoid 26 that switches the valve body 24 to the communication position 24a against the urging force of the spring 25 when energized.
- the on-off valve 23 may be an on-off valve that is manually opened and closed instead of being electromagnetic.
- the pressure in the rod side chamber 5 becomes higher than the pressure in the piston side chamber 6, and the damper 1 has a size commensurate with the difference between the pressure in the rod side chamber 5 and the pressure in the piston side chamber 6, and suppresses the extension. Demonstrates damping force.
- the pressure in the piston side chamber 6 becomes higher than the pressure in the rod side chamber 5, and the damper 1 has a size commensurate with the difference between the pressure in the piston side chamber 6 and the pressure in the rod side chamber 5, and suppresses contraction. Demonstrates damping force.
- the damper 1 exhibits a damping force during the stroke in both the extension operation and the contraction operation, as in a general damper.
- the extension side damping valve 10 can provide resistance to the flow of liquid discharged from the rod side chamber 5 to the tank 7 through the extension side passage 8. Further, since the liquid is supplied from the tank 7 through the center passage 14 and the pressure side passage 9 to the expanding piston side chamber 6, the damper 1 exhibits a damping force that counteracts expansion.
- the piston 3 When the on-off valve 23 communicates with the center passage 14, the piston 3 is closer to the lid 15 than the through hole 2a of the center passage 14, and the piston 3 strokes in the direction in which the piston-side chamber 6 is compressed, that is, to the lid 15 side.
- the pressure side damping valve 12 can provide resistance to the flow of liquid that is compressed from the piston side chamber 6 through the pressure side passage 9 to the tank 7 when the piston side chamber 6 is compressed. Further, since the liquid is supplied from the tank 7 to the expanding rod side chamber 5 via the center passage 14 and the extension side passage 8, the damper 1 exhibits a damping force against the contraction.
- the damper 1 when the on-off valve 23 communicates with the center passage 14, the damper 1 does not exert a damping force with respect to a stroke in a direction in which the piston 3 returns to the center of the cylinder 2, and the piston 3 The damping force is exhibited only for the stroke in the direction away from the center.
- the piston 3 is provided by providing the center passage 14 without employing a complicated and large-sized valve that opens and closes the bypass in conjunction with the stroke of the damper 1. Since the damping force can be exhibited when moving away from the neutral position and the damping force can be prevented from being exhibited when returning to the neutral position, the damper 1 can be reduced in size and the cost can be reduced.
- the horizontal displacement of the vibration-controlled object O in FIG. 2 is X1
- the horizontal displacement of the vibration input side I is X2
- the relative speed between the vibration-controlled object O and the vibration input side I is
- d (X1-X2) / dt is set, the displacement in the right direction in FIG. 2 is positive, the displacement X1 is taken on the vertical axis, and the relative speed d (X1-X2) / dt is taken on the horizontal axis, the damper 1 is attenuated.
- the force is exerted in the state of the first quadrant and the state of the third quadrant shown by shading in FIG.
- the opening position of the center passage 14 is the center of the cylinder 2 and a position facing the stroke center of the piston 3. Therefore, when the piston 3 returns to the stroke center, the stroke range in which the damping force is not exerted is not biased in both directions, and the entire stroke length of the damper 1 can be used effectively.
- the on-off valve 23 since the on-off valve 23 is provided in the center passage 14, the same function as a general damper that always exhibits a damping force can be exhibited during the stroke. Therefore, if necessary, it can function as a general damper, or when the piston 3 returns to the neutral position, it can exhibit a function of improving vibration insulation without exhibiting damping force.
- the on-off valve 23 can be set so as to be in the communication position 24a when power is not supplied.
- the damper 1 has a triple pipe structure of the cylinder 2, the intermediate cylinder 17 and the outer cylinder 18, the center passage 14 can be easily installed, and the tank 7 can also be arranged on the outer periphery of the cylinder 2.
- the entire damper 1 can be made more compact.
- the damper 1 employs a triple tube structure including the intermediate cylinder 17 in forming the center passage 14, but the intermediate cylinder 17 is provided as in the damper 30 shown in FIG. Instead, the pipe 31 connected to the through hole 2a and the communication path 15a may be provided in the tank 7, and the center passage 32 may be formed by the pipe 31, the through hole 2a, and the communication path 15a.
- the structure in the other damper 30 is the same as the structure of the damper 1, and attaches
- the extension side damping valve 10 and the first check valve 11 are provided on the lid 15, and the pressure side damping valve 12 and the second check valve 13 are provided on the rod guide 16. 1 can be made even more compact, but the installation locations of the expansion side damping valve 10, the first check valve 11, the pressure side damping valve 12 and the second check valve 13 are limited to the lid 15 and the rod guide 16. It may not be a thing and may be provided elsewhere. Further, the structure of the center passages 14 and 32 is not limited to the above structure.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims (6)
- ダンパであって、
シリンダと、
前記シリンダ内に摺動自在に挿入されるピストンと、
前記シリンダ内に挿入されて前記ピストンに連結されるロッドと、
前記シリンダ内に前記ピストンで区画されるロッド側室およびピストン側室と、
タンクと、
前記ロッド側室と前記タンクとを連通する伸側通路と、
前記ピストン側室と前記タンクとを連通する圧側通路と、
前記伸側通路の途中に設けられ、前記ロッド側室から前記タンクへ向かう液体の流れに抵抗を与える伸側減衰弁と、
前記伸側通路の途中に前記伸側減衰弁と並列に設けられ、前記タンクから前記ロッド側室へ向かう液体の通過のみを許容する第一逆止弁と、
前記圧側通路の途中に設けられ、前記ピストン側室から前記タンクへ向かう液体の流れに抵抗を与える圧側減衰弁と、
前記圧側通路の途中に前記圧側減衰弁と並列に設けられ、前記タンクから前記ピストン側室へ向かう液体の通過のみを許容する第二逆止弁と、
前記タンクと前記シリンダ内とを連通するセンター通路と、
を備えるダンパ。 - 請求項1に記載のダンパであって、
前記センター通路が、前記ピストンのストローク中心と対向する位置に開口するダンパ。 - 請求項1に記載のダンパであって、
前記センター通路の途中に、前記センター通路を開閉する開閉弁を設けたダンパ。 - 請求項3に記載のダンパであって、
前記開閉弁が、前記センター通路を連通する連通ポジションにおいて、通過する液体の流れに抵抗を与えるダンパ。 - 請求項1に記載のダンパであって、
前記シリンダの外周に設けられ、前記シリンダとの間の環状隙間で前記センター通路を形成する中間筒と、
前記中間筒の外周に設けられ、前記中間筒との間の環状隙間で前記タンクを形成する外筒と、
をさらに備えるダンパ。 - 請求項1に記載のダンパであって、
前記シリンダの外周に設けられ、前記シリンダとの間の環状隙間で前記タンクを形成する外筒と、
前記タンク内に設けられ、前記センター通路を形成するパイプと、
をさらに備えるダンパ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/408,302 US9422998B2 (en) | 2012-08-24 | 2013-08-09 | Damper |
EP13830831.7A EP2865917A4 (en) | 2012-08-24 | 2013-08-09 | DAMPER |
CA2878315A CA2878315C (en) | 2012-08-24 | 2013-08-09 | Damper |
CN201380031953.8A CN104379961B (zh) | 2012-08-24 | 2013-08-09 | 减震器 |
KR1020147035473A KR101653475B1 (ko) | 2012-08-24 | 2013-08-09 | 댐퍼 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-185372 | 2012-08-24 | ||
JP2012185372A JP5731453B2 (ja) | 2012-08-24 | 2012-08-24 | ダンパ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014030557A1 true WO2014030557A1 (ja) | 2014-02-27 |
Family
ID=50149866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/071690 WO2014030557A1 (ja) | 2012-08-24 | 2013-08-09 | ダンパ |
Country Status (7)
Country | Link |
---|---|
US (1) | US9422998B2 (ja) |
EP (1) | EP2865917A4 (ja) |
JP (1) | JP5731453B2 (ja) |
KR (1) | KR101653475B1 (ja) |
CN (1) | CN104379961B (ja) |
CA (1) | CA2878315C (ja) |
WO (1) | WO2014030557A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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DE112013006893B4 (de) * | 2013-03-29 | 2023-07-27 | Hitachi Astemo, Ltd. | Druckdämpfungsvorrichtung |
JP6134238B2 (ja) * | 2013-09-11 | 2017-05-24 | Kyb株式会社 | 緩衝器 |
JP6584785B2 (ja) * | 2015-02-12 | 2019-10-02 | 清水建設株式会社 | 回転慣性質量ダンパー |
JP6581511B2 (ja) * | 2016-01-05 | 2019-09-25 | Kyb株式会社 | フロントフォーク |
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US10837515B2 (en) | 2019-02-11 | 2020-11-17 | Tenneco Automotive Operating Company Inc. | Damper baffle tube with elastomeric skirt |
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2013
- 2013-08-09 WO PCT/JP2013/071690 patent/WO2014030557A1/ja active Application Filing
- 2013-08-09 KR KR1020147035473A patent/KR101653475B1/ko active IP Right Grant
- 2013-08-09 CN CN201380031953.8A patent/CN104379961B/zh not_active Expired - Fee Related
- 2013-08-09 US US14/408,302 patent/US9422998B2/en not_active Expired - Fee Related
- 2013-08-09 CA CA2878315A patent/CA2878315C/en not_active Expired - Fee Related
- 2013-08-09 EP EP13830831.7A patent/EP2865917A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
KR20150013320A (ko) | 2015-02-04 |
US9422998B2 (en) | 2016-08-23 |
KR101653475B1 (ko) | 2016-09-01 |
EP2865917A4 (en) | 2016-04-13 |
CN104379961B (zh) | 2016-04-06 |
JP2014043873A (ja) | 2014-03-13 |
CA2878315C (en) | 2016-11-08 |
CA2878315A1 (en) | 2014-02-27 |
JP5731453B2 (ja) | 2015-06-10 |
US20150152935A1 (en) | 2015-06-04 |
EP2865917A1 (en) | 2015-04-29 |
CN104379961A (zh) | 2015-02-25 |
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