WO2006061874A1 - 液封入式防振装置 - Google Patents
液封入式防振装置 Download PDFInfo
- Publication number
- WO2006061874A1 WO2006061874A1 PCT/JP2004/018133 JP2004018133W WO2006061874A1 WO 2006061874 A1 WO2006061874 A1 WO 2006061874A1 JP 2004018133 W JP2004018133 W JP 2004018133W WO 2006061874 A1 WO2006061874 A1 WO 2006061874A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rubber valve
- orifice
- rubber
- peripheral surface
- orifice groove
- Prior art date
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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1463—Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers
- F16F13/1472—Valve elements to cope with over-pressure, e.g. lips
Definitions
- the present invention provides:
- a first liquid chamber and a second liquid chamber each including an inner cylinder, an outer cylinder, and a vibration isolating base made of a rubber-like elastic body interposed between the inner and outer cylinders.
- a first orifice that connects the first liquid chamber and the second liquid chamber, and a first sub-flow that allows the liquid to flow only from the first liquid chamber side to the second liquid chamber side via the first rubber valve.
- An orifice part and a second sub-orifice part for allowing the liquid to flow only from the second liquid chamber side to the first liquid chamber side through the second rubber valve are formed;
- the first sub-orifice portion is provided with a first orifice groove forming portion that is pressed against the inner peripheral surface of the outer cylinder, and the second sub-orifice portion is pressed against the inner peripheral surface of the outer cylinder.
- a refied groove forming portion is provided, wherein the first rubber valve is in the first orifice groove of the first orifice groove forming portion, and the second rubber valve is in the second orifice groove of the second orifice groove forming portion.
- the first rubber valve is configured so that the top of the first rubber valve and the top of the second rubber valve are in pressure contact with the inner peripheral surface of the outer cylinder.
- the second rubber valve is set to an inclined posture located on the downstream side of the second orifice groove toward the top side,
- the present invention relates to a liquid-filled vibration isolator in which the first rubber valve or the second rubber valve is configured to be elastically deformed and opened by liquid pressure.
- the first rubber valve and the second rubber valve remain closed when the liquid pressure in the first liquid chamber and the second liquid chamber is less than a set value. Then, the liquid flows through the main orifice portion, and the liquid enters the second liquid chamber from the first liquid chamber or the second liquid chamber force first liquid chamber, and the vibration is absorbed by the flow effect of the liquid. In the closed state, the fluid pressure in the first fluid chamber is set. When a constant value is reached, the first rubber valve is elastically deformed by the hydraulic pressure and opens, and the liquid passes between the top of the first rubber valve and the inner peripheral surface of the outer cylinder, from the first liquid chamber side to the second liquid chamber. Liquid flows.
- the hydraulic pressure in the first liquid chamber is lowered, and the durability of the rubber wall forming the first liquid chamber is prevented from being lowered.
- the hydraulic pressure in the second fluid chamber reaches the set value in the closed state, the second rubber valve is elastically deformed and opened by the hydraulic pressure, and the gap between the top of the second rubber valve and the inner peripheral surface of the outer cylinder is opened.
- the liquid passes through and flows from the second liquid chamber side to the first liquid chamber.
- the hydraulic pressure in the second liquid chamber is lowered, and the durability of the rubber wall forming the second liquid chamber is prevented from being lowered.
- the first rubber valve and the second rubber valve were merely formed in a simple rubber film shape having a constant thickness.
- Patent Literature l WO 03/033936 A1 Publication
- the first rubber valve or the second rubber valve when the fluid pressure in the first fluid chamber or the second fluid chamber reaches a set value.
- the opening speed of the liquid was too fast. It took time to reduce the liquid pressure in the first liquid chamber or the second liquid chamber to a desired value. As a result, it was difficult to sufficiently prevent the deterioration of the durability of the rubber wall forming the liquid chamber, leaving room for improvement.
- An object of the present invention is to provide a liquid-sealed vibration isolator capable of further improving the durability of a rubber wall forming a liquid chamber.
- a feature of the present invention is that in the liquid-filled vibration isolator described in the technical field at the beginning, the first rubber valve and the second rubber valve are formed in a rubber film shape, and the first rubber valve On the top of the second rubber valve, a bulging portion having an arcuate cross section that is in pressure contact with the inner peripheral surface of the outer cylinder is formed across the entire width of the top,
- the bulging portion of the first rubber valve bulges to the outer side of the membrane surface of the pair of membrane surfaces of the first rubber valve on the side corresponding to the upstream side of the first orifice groove.
- the bulging portion of the first rubber valve is in pressure contact with the inner peripheral surface of the outer cylinder. Rather than the surface Protruding to the side corresponding to the outside,
- the bulging portion of the second rubber valve bulges to the outer side of the membrane surface of the pair of membrane surfaces of the second rubber valve on the side corresponding to the upstream side of the second orifice groove.
- the bulging portion of the second rubber valve is pressed against the inner peripheral surface of the outer cylinder. It is in the point which protrudes in the side corresponding to the outer side of the said press-contact surface rather than a surface.
- the cross sections of the first rubber valve and the second rubber valve are formed with cross-section arc-shaped bulging portions that are in pressure contact with the inner peripheral surface of the outer cylinder over the entire width of the top portion.
- the bulging part momentums the swinging of the first rubber valve or the second rubber valve toward the opening side.
- the opening speed of the first rubber valve or the second rubber valve is faster than the structure in which the rubber valve and the second rubber valve are formed in a simple rubber film shape with a constant thickness. As a result, the time for lowering the fluid pressure in the first fluid chamber or the second fluid chamber to a desired value can be shortened. (Claim 1)
- a first mold disposed on one film surface side of the first rubber valve and a second mold disposed on the other film surface side Are removed from the outer surfaces of the respective film surfaces.
- the bulging portion of the first rubber valve has a film surface force on the side corresponding to the upstream side of the first orifice groove of the pair of film surfaces of the first rubber valve.
- the bulge portion of the second rubber valve bulges to the outer side, and the membrane surface force on the side corresponding to the upstream side of the second orifice groove of the pair of membrane surfaces of the second rubber valve is on the outer side of the membrane surface.
- the bulging portion of the first rubber valve is pressed against the inner peripheral surface of the outer cylinder more than the pressure contact surface of the first orifice groove forming portion. Projecting to the side corresponding to the outer side of the surface, and before the second orifice groove forming portion and the outer cylinder are assembled, the bulging portion of the second rubber valve is in contact with the inner peripheral surface of the outer cylinder. Because it protrudes from the pressure contact surface of the orifice groove forming part to the side corresponding to the outside of the pressure contact surface
- a valve main body portion between a bulging portion and a base end portion of the first rubber valve is formed in a thin taper toward the side closer to the bulging portion, and the second rubber valve If the valve body portion force S between the bulging portion and the base end portion of the valve is formed in a thin taper toward the side closer to the bulging portion, the opening speed of the first rubber valve or the second rubber valve is increased. Can be faster. (Claim 2)
- An intermediate cylinder positioned between the inner cylinder and the outer cylinder
- the intermediate cylinder is
- a pair of ring-shaped fitting peripheral walls on both ends in the axial direction to which the outer cylinder is fitted, and an axial core of the intermediate cylinder, and located on the radially inner side of the fitting peripheral wall; A pair of connecting walls that connect the pair of mating peripheral walls;
- the vibration-proof substrate is
- connection walls Between the inner peripheral surface of one of the connection walls and the outer peripheral surface of the inner cylinder, and between the inner peripheral surface of the other connection wall and the outer peripheral surface of the inner cylinder,
- end walls made of rubber-like elastic bodies are respectively vulcanized to form the end walls.
- the first orifice groove forming portion is provided on the outer peripheral surface side of one connecting wall, and the second orifice groove forming portion is provided on the outer peripheral surface side of the other connecting wall, and the first orifice groove and the second The orifice groove is set in a posture along the circumferential direction of the intermediate cylinder,
- the pressure contact surface of the first orifice groove forming portion with respect to the inner peripheral surface of the outer cylinder is the outer peripheral surface of the first orifice groove forming portion and corresponds to the outside of the pressure contact surface of the first orifice groove forming portion.
- the side is the radially outer side of the intermediate cylinder,
- the pressure contact surface of the second orifice groove forming portion with respect to the inner peripheral surface of the outer cylinder is the outer peripheral surface of the second orifice groove forming portion and corresponds to the outside of the pressure contact surface of the second orifice groove forming portion. If the side is on the radially outer side of the intermediate cylinder, the following action can be achieved. (Claim 3)
- the first orifice groove forming portion is provided on the outer peripheral surface side of one of the connecting walls, Since the formed portion is provided on the outer peripheral surface side of the other connecting wall and the first orifice groove and the second orifice groove are set in a posture along the circumferential direction of the intermediate cylinder, the structure can be simplified. wear. Then, by opening the first rubber valve and the second rubber valve as described above, it is possible to avoid applying a large hydraulic pressure to the end wall. (Claim 3)
- a pair of the first orifice grooves is formed in the first orifice groove forming portion
- a rubber-made second seal lip connected to the side portion is vulcanized and molded on the outer peripheral surface of the first orifice groove forming portion, and the bulged portion of the first rubber valve is vulcanized and molded to the other first orifice groove.
- a third rubber seal lip that is connected to one end in the width direction of the rubber and a side portion of the rubber annular seal lip formed along the circumferential direction on the other fitting peripheral wall forms the first orifice groove. Vulcanized and molded on the outer peripheral surface of the
- a pair of the second orifice grooves are formed in the second orifice groove forming portion
- the annular seal lip can prevent the liquid from flowing out in the width direction of the first rubber valve between the outer peripheral surface of the first orifice groove forming portion and the inner peripheral surface of the outer cylinder. . Then, when the first rubber valve is kept closed, the liquid is placed on the outer side in the width direction of the first rubber valve between the outer peripheral surface of the first orifice groove forming portion and the inner peripheral surface of the outer cylinder. (1) Failure to flow in the direction along the orifice groove can be prevented by the annular seal lip, second seal lip, and third seal lip, and both first orifice groove portions on both sides of the first rubber valve are in communication. Can be avoided. Similarly,
- the annular seal lip can prevent the liquid from flowing out to the outer side in the width direction of the second rubber valve between the outer peripheral surface of the second orifice groove forming portion and the inner peripheral surface of the outer cylinder. Then, when the second rubber valve is kept in the closed state, the liquid is placed on the outer side in the width direction of the second rubber valve between the outer peripheral surface of the second orifice groove forming portion and the inner peripheral surface of the outer cylinder. (2) Trouble in the direction along the orifice groove can be prevented by the annular seal lip, the fourth seal lip and the fifth seal lip, and both the second orifice groove portions on both sides of the second rubber valve are in communication. Can be avoided. (Claim 4)
- FIG. 7 Front view showing the state before assembly of a rubber molded product consisting of the inner cylinder and vibration isolating base
- FIG. 8 Front view showing the assembled state of a rubber molded product consisting of the inner cylinder, vibration isolator, etc.
- FIG. 9 Front view showing the assembled state of a rubber molded product consisting of inner cylinder and vibration isolating body
- FIG. 10 Side view showing the state before assembling the rubber molded product consisting of the inner cylinder and vibration isolating base
- FIG. 11 Front view showing the state before assembly of a rubber molded product consisting of the inner cylinder and vibration isolating base
- FIG. 12 Front view showing an assembled state of a rubber molded product including an inner cylinder, a vibration-proof base, etc.
- FIG. 13 Front view showing an assembled state of a rubber molded product composed of an inner cylinder, a vibration-proof base, etc
- FIG. 15 shows a rubber valve according to another embodiment.
- Figure 1 and Figure 6 show the liquid-filled vibration isolator.
- This liquid-filled vibration isolator is interposed between an inner cylinder 1 having a circular cross section connected to a vehicle body frame of an automobile, and an outer cylinder 2 having a circular cross section that is press-fitted into a press-fitting hole of a lower link of a suspension.
- an anti-vibration base 3 made of a rubber-like elastic body.
- a first liquid chamber 4A and a second liquid chamber 4B are formed between the inner cylinder 1 and the outer cylinder 2 with the vibration isolating base 3 as a chamber wall, and the first liquid chamber 4A and the second liquid chamber 4B are formed.
- the main orifice part 5 for communicating the liquid chamber 4B, the first liquid chamber 4A side force via the first rubber valve 18A, the first sub-orifice part 6 for flowing the liquid only to the second liquid chamber 4B side, and the second The second liquid chamber 4B side force via the rubber valve 18B is formed with the second sub-orifice portion 46 for allowing the liquid to flow only to the first liquid chamber 4A side.
- the liquid-filled vibration isolator further has a circular cross-section located between the inner cylinder 1 and the outer cylinder 2.
- the intermediate cylinder 7 is located between the pair of ring-shaped fitting peripheral walls 8A and 8B on both ends in the axial direction to which the outer cylinder 1 is fitted, and the axis O of the intermediate cylinder 7.
- a pair of connecting walls 9A, 9B having an arcuate cross section are provided that are positioned radially inward of the fitting peripheral walls 8A, 8B and connect the pair of fitting peripheral walls 8A, 8B.
- the vibration isolator base 3 includes an inner peripheral surface 10 of one connecting wall 9A (hereinafter referred to as “first connecting wall 9A”) and an outer peripheral surface 11 of the inner cylinder 1. And between the inner peripheral surface 12 of the other connecting wall 9B (hereinafter, “second connecting wall 9B”) and the outer peripheral surface 11 of the inner cylinder 1 are vulcanized. As shown in FIGS. 1 and 6, between one fitting peripheral wall 8A (hereinafter referred to as “first fitting peripheral wall 8A”) and the inner cylinder 1, and the other fitting peripheral wall 8B (hereinafter referred to as “second fitting”).
- first fitting peripheral wall 8A hereinafter referred to as “first fitting peripheral wall 8A”
- second fitting peripheral wall 8B hereinafter referred to as “second fitting”.
- the end walls 14A and 14B made of a rubber-like elastic body are vulcanized between the fitting peripheral wall 8B ") and the inner cylinder 1, and the pair of end walls 14A and 14B are the first liquid chamber 4A. And the chamber wall of the second liquid chamber 4B is formed.
- Reference numeral 65 is a stopper for keeping the relative displacement of the inner and outer cylinders 1 and 2 within a predetermined range.
- the main orifice portion 5 will be described.
- the first fitting recess 21 formed on the outer peripheral surface 19A side of the first connecting wall 9A (2) A circular arc-shaped first having a main orifice groove (20) communicating with the first liquid chamber (4A) through the first opening (60A) in the second fitting recess (22) formed on the outer peripheral surface (19B) side of the connecting wall (9B).
- Both end portions 25 C and 25D of the orifice forming member 25 are fitted to each other, and the third fitting recess 23 formed on the outer peripheral surface 19A side of the first connecting wall 9A and the outer peripheral surface 19B of the second connecting wall 9B.
- Both ends 27C of an arc-shaped second orifice forming member 27 having a main orifice groove 20 communicating with the second liquid chamber 4B through the second opening 60B and the fourth fitting recess 24 formed on the side 27C 27D is fitted separately.
- the first fitting recess 21 and the third fitting recess 23 are adjacently connected in the circumferential direction of the intermediate cylinder 7 (see FIG. 7). Then, one end portion 25C of the first orifice forming member 25 and one end portion 27C of the second orifice forming member 27 are abutted on the first connecting wall 9A side (see FIG. 8), and the main orifice of the first orifice forming member 25 The groove 20 and the main orifice groove 20 of the second orifice forming member 27 are connected in communication. The outer peripheral surface of the first orifice forming member 25 and the outer peripheral surface of the second orifice forming member 27 are in pressure contact with the inner peripheral surface 15 of the outer cylinder 2.
- the main orifice groove 20 is covered with the outer cylinder 2 to form the orifice 50 of the main orifice portion 5.
- the second fitting recess 22 and the fourth fitting recess 24 are adjacent to each other in the circumferential direction of the intermediate cylinder 7 via a partition wall 38 (see FIG. 9 and FIG. 11) (see FIG. 9). On the 9B side, the pair of main orifice grooves 20 are not in communication.
- the first, first, and fourth fitting recesses 21, 22, 23, and 24 are all located in the center of the intermediate tube 7 in the axial direction of the intermediate tube 7, and the first, first, and fourth fitting recesses 21 in the axial direction of the intermediate tube 7 , 22, 23, 24 are all set to the same width (non-identical structures can also be used).
- the first orifice forming member 25 and the second orifice forming member 27 are the same parts of the same shape and size (by exchanging them) and the first fitting recess 21 and the second fitting recess 22 is fitted with both end portions 27C and 27D of the second orifice forming member 27, and the third fitting recessed portion 23 and the fourth fitting recessed portion 24 are respectively fitted with both end portions 25C and 25C of the first orifice forming member 25. 25D can be fitted separately. Thereby, productivity and assembly of the orifice forming member can be improved.
- the first sub-orifice portion 6 is configured such that a first orifice groove forming portion 28 provided on the outer peripheral surface 19A side of the first connecting wall 9A is brought into pressure contact with the inner peripheral surface 15 of the outer cylinder 2. That is, as shown in FIGS. 7 and 8, the first sub-orifice portion 6 is provided with a first orifice groove forming portion 28 that is in pressure contact with the inner peripheral surface 15 of the outer cylinder 2.
- the first orifice groove forming portion 28 is a pair of first sub-orifice grooves 30 located between the first fitting recess 21 and the third fitting recess 23 in the axial direction of the intermediate cylinder 7 (corresponding to the first orifice groove) It has.
- the pair of first sub-orifice grooves 30 are formed in parallel with each other in a U-shape in cross section and over the entire circumferential width of the first connecting wall 9A.
- the first rubber valve 18A is vulcanized and formed in a pair of first sub-orifice grooves 30 so that the top of the first rubber valve 18A is in pressure contact with the inner peripheral surface 15 of the outer cylinder 2. Further, the first rubber valve 18A is set to an inclined posture positioned on the downstream side of the first sub-orifice groove 30 toward the top side (see FIGS. 14 and 5).
- the first rubber valve 18A is formed in a rubber film shape, and a bulging portion 17A having an arcuate cross section in pressure contact with the inner peripheral surface 15 of the outer cylinder 2 has a full width at the top. It ’s formed! , Ru The bulging portion 17A bulges from the membrane surface 47A on the side corresponding to the upstream side of the first sub-orifice groove 30 of the pair of membrane surfaces 47A, 48A of the first rubber valve 18A to the outer side A of the membrane surface 47A. Out . As shown in FIG.
- the bulging portions 17A of the pair of first rubber valves 18A are located at the center in the circumferential direction of the first connecting wall 9A, and are spaced in the axial direction in a posture along the axial direction of the intermediate cylinder 7. They are lined up.
- the first rubber valve 18A vulcanized and molded in the first sub-orifice groove 30 has one end in the width direction of the bulging portion 17A and the first fitting peripheral wall 8A.
- Rubber annular seal lip 61 formed along the circumferential direction inner side in the axial direction of the pair of rubber annular seal lips 61 formed along the circumferential direction on the first fitting peripheral wall 8A
- a second seal lip 62 made of rubber that is continuous with the side of the annular seal lip 61) is vulcanized and formed on the outer peripheral surface 28C of the first orifice groove forming portion 28.
- first rubber valve 18A vulcanized and formed in the other first suborifice groove 30 is formed so as to extend along the circumferential direction at one end in the width direction of the bulging portion 17A of the first rubber valve 18A and the second fitting peripheral wall 8B.
- the annular seal lip 61 (the axially inward annular seal lip 61 of the pair of rubber annular seal lips 61 formed along the circumferential direction of the second fitting peripheral wall 8B) is connected to the side of the annular seal lip 61.
- a third seal lip 63 made of rubber is vulcanized and formed on the outer peripheral surface 28C of the first orifice groove forming portion 28.
- the second seal lip 62 and the bulging portion 17A of the pair of first rubber valves 18A and the third seal lip 63 are aligned in a straight line. They are set to the same size.
- the bulging portion 17A of the pair of first rubber valves 18A is the outer periphery of the first orifice groove forming portion 28.
- annular seal lip 61 protrudes radially outward G of the intermediate cylinder 7 from the outer peripheral surface 28C of the first orifice groove forming portion 28.
- the second seal lip 62 and the third seal lip 63 protrude on the outer side of the outer peripheral surface 28C of the outer peripheral surface 28C of the first orifice groove forming portion 28.
- the second sub-orifice portion 46 is configured by pressing a second orifice groove forming portion 29 provided on the outer peripheral surface 19B side of the second connecting wall 9B to the inner peripheral surface 15 of the outer cylinder 2. That is, as shown in FIGS. 9, 11, 12, and 13, the second sub-orifice portion 46 is provided with a second orifice groove forming portion 29 that presses against the inner peripheral surface 15 of the outer cylinder 2.
- This second orifice groove forming part 29 is A pair of second sub-orifice grooves 31 (corresponding to second orifice grooves) are provided in the axial direction of the cylinder 7 with the second fitting recess 22 and the fourth fitting recess 24 sandwiched therebetween (see FIG. 9).
- the pair of second sub-orifice grooves 31 are formed in parallel with each other in a U-shaped cross-section and over the entire circumferential width of the second connecting wall 9B.
- the second rubber valve 18B is vulcanized and formed in a pair of second sub-orifice grooves 31 so that the top of the second rubber valve 18B is in pressure contact with the inner peripheral surface 15 of the outer cylinder 2. Further, the second rubber valve 18B is set to an inclined posture located on the downstream side of the second auxiliary orifice groove 31 toward the top side (see FIG. 14 and FIG. 5).
- the second rubber valve 18B has the same shape and size as the first rubber valve 18A. That is, as shown in FIG. 14, the second rubber valve 18B is formed in a rubber film shape, and a bulging portion 17B having an arcuate cross section that presses against the inner peripheral surface 15 of the outer cylinder 2 extends over the entire width of the top portion. It is formed. The bulging portion 17B swells from the membrane surface 47B on the side corresponding to the upstream side of the second sub-orifice groove 31 of the pair of membrane surfaces 47B, 48B of the second rubber valve 18B to the outer side A of the membrane surface 47B. I'm out. As shown in FIG.
- the bulging portion 17B of the pair of second rubber valves 18B is located at the center in the circumferential direction of the second connecting wall 9B, and is spaced in the axial direction in a posture along the axial direction of the intermediate cylinder 7. Line up in the sky.
- the bulging portion 17B of the second rubber valve 18B is formed along one end portion in the width direction and the second fitting peripheral wall 8B along the circumferential direction.
- the annular seal lip 61 made of rubber (the annular seal lip 61 on the inner side in the axial direction of the pair of rubber annular seal lips 61 formed along the circumferential direction of the second fitting peripheral wall 8B)
- a rubber-made fifth seal lip 65 connected to the outer peripheral surface 29C of the second orifice groove forming portion 29 is vulcanized and molded.
- a rubber sixth seal lip 39 is formed which is positioned between the bulging portions 17B of the pair of second rubber valves 18B in the axial direction of the inner and outer cylinders 1 and 2. ing.
- the fourth seal lip 64 and the pair of second rubber valves 18B bulge
- the portion 17B, the fifth seal lip 65, and the sixth seal lip 39 are aligned in a straight line, and all have a circular cross-sectional shape and the cross-sectional shapes are set to be approximately the same size. .
- the bulging portions 17B of the pair of second rubber valves 18B are the outer peripheral surfaces of the second orifice groove forming portion 29.
- the radial outer side G of the intermediate cylinder 7 (outside the pressure contact surface of the second orifice groove forming portion 29) than 29C (corresponding to the pressure contact surface of the second orifice groove forming portion 29 with respect to the inner peripheral surface 15 of the outer tube 2) It corresponds to the side corresponding to the direction).
- the annular seal lip 61 protrudes outward in the radial direction G of the intermediate cylinder 7 from the outer peripheral surface 29 C of the second orifice groove forming portion 29.
- the force of the outer peripheral surface 29C of the second orifice groove forming portion 29 also protrudes outward of the outer peripheral surface 29C.
- the pair of second rubber valves 18B are elastically deformed and opened by the fluid pressure, and the bulging portion 17B of the second rubber valve 18B and the inner peripheral surface 15 of the outer cylinder 2 are opened.
- the liquid passes through the second liquid chamber 4B side force, and the liquid flows into the second liquid chamber 4A.
- the rubber film-like valve main body 35A between the bulging portion 17A and the base end portion 34A of the first rubber valve 18A is thinner toward the side closer to the bulging portion 17A. It is formed in a taper shape, and the rubber film-like valve main body portion 35B between the bulging portion 17B and the base end portion 34B of the second rubber valve 18B is close to the force bulging portion 17B.
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- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/018133 WO2006061874A1 (ja) | 2004-12-06 | 2004-12-06 | 液封入式防振装置 |
US11/222,974 US7267332B2 (en) | 2004-12-06 | 2005-09-12 | Hydraulic vibration isolation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/018133 WO2006061874A1 (ja) | 2004-12-06 | 2004-12-06 | 液封入式防振装置 |
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WO2006061874A1 true WO2006061874A1 (ja) | 2006-06-15 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104235254A (zh) * | 2014-09-10 | 2014-12-24 | 安徽江淮汽车股份有限公司 | 一种液压悬置 |
CN105605133A (zh) * | 2016-03-25 | 2016-05-25 | 吉林大学 | 一种惯性通道截面可变的液压衬套 |
EP2657566A3 (de) * | 2012-04-23 | 2017-12-27 | BOGE Elastmetall GmbH | Hydrolager mit einer als separates Bauteil hergestellten Dichtlippe |
US10184512B2 (en) | 2015-06-04 | 2019-01-22 | Boge Elastmetall Gmbh | Elastomeric journal bearing |
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JPS348017Y1 (ja) * | 1957-03-11 | 1959-05-27 | ||
JPS4518Y1 (ja) * | 1965-03-24 | 1970-01-06 | ||
JPS4720288B1 (ja) * | 1968-03-18 | 1972-06-09 | ||
JPS59175757U (ja) * | 1983-05-12 | 1984-11-24 | 三菱電機株式会社 | 軸封装置 |
JPH0742460U (ja) * | 1993-12-29 | 1995-08-04 | キーパー株式会社 | 揺動ないし球面運動などが可能な継手構造物用ダストシール |
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EP2657566A3 (de) * | 2012-04-23 | 2017-12-27 | BOGE Elastmetall GmbH | Hydrolager mit einer als separates Bauteil hergestellten Dichtlippe |
CN104235254A (zh) * | 2014-09-10 | 2014-12-24 | 安徽江淮汽车股份有限公司 | 一种液压悬置 |
US10184512B2 (en) | 2015-06-04 | 2019-01-22 | Boge Elastmetall Gmbh | Elastomeric journal bearing |
CN105605133A (zh) * | 2016-03-25 | 2016-05-25 | 吉林大学 | 一种惯性通道截面可变的液压衬套 |
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