WO2012001906A1 - Dispositif amortisseur de vibrations - Google Patents

Dispositif amortisseur de vibrations Download PDF

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Publication number
WO2012001906A1
WO2012001906A1 PCT/JP2011/003500 JP2011003500W WO2012001906A1 WO 2012001906 A1 WO2012001906 A1 WO 2012001906A1 JP 2011003500 W JP2011003500 W JP 2011003500W WO 2012001906 A1 WO2012001906 A1 WO 2012001906A1
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WO
WIPO (PCT)
Prior art keywords
rubber elastic
elastic body
main rubber
pair
mounting member
Prior art date
Application number
PCT/JP2011/003500
Other languages
English (en)
Japanese (ja)
Inventor
赤佐　彰治
井上　智也紀
Original Assignee
東海ゴム工業株式会社
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 東海ゴム工業株式会社 filed Critical 東海ゴム工業株式会社
Priority to DE112011100079.0T priority Critical patent/DE112011100079B4/de
Priority to JP2011546497A priority patent/JP5244244B2/ja
Priority to CN201180003106.1A priority patent/CN102483126B/zh
Publication of WO2012001906A1 publication Critical patent/WO2012001906A1/fr

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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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/376—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having projections, studs, serrations or the like on at least one surface

Definitions

  • the present invention relates to a vibration isolator that is suitably used for, for example, an automobile engine mount.
  • the vibration isolator has a structure in which a first attachment member and a second attachment member attached to one member constituting the vibration transmission system are elastically connected by a main rubber elastic body.
  • a first attachment member and a second attachment member attached to one member constituting the vibration transmission system are elastically connected by a main rubber elastic body.
  • the first mounting member is disposed above the second mounting member having a longitudinal plate shape
  • a main rubber elastic body is disposed between the first mounting member and the second mounting member.
  • a convex portion is provided for the purpose of improving the load resistance of the main rubber elastic body in the longitudinal direction of the second mounting member.
  • the convex portion is formed by partially curving the second attachment member by pressing.
  • the first mounting member and the second mounting member are combined with the main rubber elastic body in a non-adhesive manner.
  • more excellent positioning properties and load resistance have been demanded.
  • the present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the main rubber elastic body can be positioned in both the width direction and the length direction of the second mounting member.
  • An object of the present invention is to provide a vibration isolator having a novel structure capable of realizing excellent load resistance and durability.
  • the first aspect of the present invention is the vibration isolator in which the main rubber elastic body is disposed between the opposing surfaces of the first mounting member and the second mounting member, wherein the first mounting member is the main body.
  • the second mounting member While being attached non-adhering to the rubber elastic body, the second mounting member has a longitudinal plate-shaped bottom wall portion and a groove shape having a pair of side wall portions facing each other in the width direction of the bottom wall portion.
  • the bottom wall portion is partially cut and raised so that a pair of flange walls facing each other in the length direction of the bottom wall portion is erected, and the second mounting member
  • the main rubber elastic body is non-adhered to a region surrounded by the pair of side wall portions and the pair of rib walls, and the outer peripheral surface of the main rubber elastic body is the upper end of each of the pair of rib walls.
  • the outer circumferential surface of the main rubber elastic body is separated from the edge portion inward in the opposing direction of the pair of rib walls. Characterized in that it is spaced inwardly in the opposing direction of the pair of vertical wall portions relative to the side end edge portions provided at each widthwise end of the vertical wall portion of the pair.
  • the second mounting member having the groove shape is employed, and a pair of wall portions are provided on the bottom wall portion of the second mounting member.
  • the main rubber elastic body is easily and reliably positioned between the opposing surfaces of the pair of side wall portions and the pair of eaves wall portions.
  • the eaves wall part is formed by partially cutting and raising the bottom wall part, it is more than when the eaves wall part is prepared separately and fixed to the bottom wall part by means of welding, press fitting, or the like.
  • the number of parts can be reduced, the structure associated therewith can be simplified, and the assembly work can be simplified.
  • the upper end edge portion and the side end edge portion formed on the wall portion by being formed by cutting and raising are both separated from the outer peripheral surface of the main rubber elastic body. Therefore, it is possible to avoid the occurrence of cracks and the like due to the contact with the edge portions on the outer peripheral surface of the main rubber elastic body, thereby ensuring sufficient durability.
  • a second aspect of the present invention is the vibration isolator described in the first aspect, wherein a position of the outer peripheral surface of the main rubber elastic body facing both side portions in the width direction of the flange wall portion is the flange.
  • the central surface located between the pair of steps on the outer peripheral surface of the main rubber elastic body is positioned on the outer side in the circumferential direction of each step. It protrudes outward as compared to the outer side surface, and the flange wall portion is in contact with and overlapped with the central surface, and both ends in the width direction of the flange wall portion with respect to the outer side surfaces
  • the both side edge portions are spaced apart and opposed to each other.
  • a step is provided on both sides in the circumferential direction of the outer peripheral surface region where the ridge wall portions are overlapped, and both sides in the circumferential direction than the portion facing the side edge of the ridge wall portion. It is possible to make the area deviated inwardly in a concave shape. Thereby, while ensuring the contact area of the collar wall portion with the main rubber elastic body, the contact of the side edge portion with the main rubber elastic body is avoided or reduced, and the durability of the main rubber elastic body is improved. Can be achieved.
  • the main body of a collar wall part In order to advantageously secure the area of contact with the rubber elastic body, linearly close the side of the heel wall near both ends in the vertical direction so that it is not too far away from both ends in the width direction (side Preferably, it is formed so as to extend (along the end edge).
  • a concave groove extending along the side edge portion is formed on the outer peripheral surface of the main rubber elastic body.
  • the outer peripheral surface of the main rubber elastic body is formed into a side edge portion by forming a concave groove in a portion of the outer peripheral surface of the main rubber elastic body that is overlapped with the side end edge portion of the flange wall portion. Can be prevented from coming into strong contact. Therefore, the durability of the main rubber elastic body can be ensured.
  • the design of the main rubber elastic body has been greatly improved in order to achieve escape from the side edge portion. Therefore, it is possible to ensure a large degree of freedom in vibration isolation characteristics.
  • the main rubber elastic body has an end face on the fitting side to the second mounting member. A central recess that opens is formed.
  • the central recess is provided at the end of the main rubber elastic body on the second mounting member side, so that the main rubber elastic body is fitted to the second mounting member. Deformation to the inner circumference is allowed. Therefore, even when the outer peripheral surface of the main rubber elastic body is pressed against the pair of side wall portions and the pair of collar wall portions, the main rubber elastic body is prevented from bulging and deforming to the outer peripheral side, And contact of the edge portion can be avoided. Accordingly, it is possible to prevent the main rubber elastic body from being damaged and ensure durability.
  • a fitting protrusion that is inserted into the main rubber elastic body in the first mounting member. Is provided, and the fitting protrusions overlap the pair of rib walls in the projection in the opposing direction of the pair of rib walls.
  • the spring constant when the main rubber elastic body is compressed between the fitting protrusion and the collar wall, the spring constant can be set large in the facing direction of the fitting protrusion and the collar wall. It becomes possible. As a result, the degree of freedom in tuning the spring characteristics is increased, and it is possible to cope with the required characteristics at a high level.
  • the main rubber elastic body can be positioned with a small number of parts and a simple structure by forming the second mounting member into a groove shape and integrally forming the wall portion on the bottom wall portion.
  • excellent load resistance can be realized.
  • the outer peripheral surface of the main rubber elastic body is separated from the upper edge portion and the side edge portion of the flange wall portion that is formed when the bottom wall portion is partially cut up, so that the edge portion is abutted against the edge portion. A decrease in durability of the main rubber elastic body due to contact is avoided.
  • the longitudinal cross-sectional view which shows the engine mount as one Embodiment of this invention.
  • the front view of the engine mount shown by FIG. The top view of the engine mount shown by FIG.
  • the side view of the engine mount shown by FIG. FIG. 5 is an explanatory diagram of a main part corresponding to the VV cross section of FIG. 1.
  • the top view of the 1st attachment member which comprises the engine mount shown by FIG. VII-VII sectional view of FIG. FIG. 10 is a longitudinal sectional view of a main rubber elastic body constituting the engine mount shown in FIG. 1, and is a VIII-VIII sectional view of FIG. 9;
  • the top view of the main body rubber elastic body shown by FIG. The bottom view of the main body rubber elastic body shown by FIG.
  • the top view of the 2nd attachment member which comprises the engine mount shown by FIG. XII-XII sectional view of FIG. XIII-XIII sectional view of FIG. FIG. 12 is a cross-sectional view taken along line XIV-XIV in FIG. 11.
  • the rear view of the portal member which comprises the engine mount shown by FIG. FIG. 10 is a plan view of a main rubber elastic body constituting an engine mount as another embodiment of the present invention, corresponding to FIG. 9.
  • 1 to 5 show an automobile engine mount 10 as an embodiment of a vibration isolator having a structure according to the present invention.
  • the engine mount 10 has a structure in which a first mounting member 12 and a second mounting member 14 that are opposed to each other in the axial direction are connected by a main rubber elastic body 16 that is disposed between the facing surfaces. ing.
  • the first attachment member 12 is attached to a power unit (not shown), and the second attachment member 14 is attached to a vehicle body (not shown), so that the power unit is supported by the vehicle body in a vibration-proof manner.
  • 1 to 5 show the engine mount 10 in a single state before being mounted on the vehicle.
  • the vertical direction refers to the vertical direction in FIG. 1 that is the mount central axis direction.
  • the width direction means the left-right direction in FIG. 3
  • the length direction means the up-down direction in FIG.
  • the first mounting member 12 has a substantially plate shape as a whole, and integrally includes a fitting portion 18 and a connecting portion 20 as shown in FIGS. Yes.
  • the fitting portion 18 has a substantially rectangular dish shape that opens downward as a whole, and the peripheral wall portion 24 integrally formed from the outer peripheral edge portion of the upper bottom wall portion 22 having a substantially rectangular plate shape faces downward.
  • the upper bottom wall portion 22 is formed with a locking groove 26 linearly extending in the length direction (vertical direction in FIG. 6), and is open to the upper surface of the upper bottom wall portion 22 and is long. Both ends in the vertical direction are open to the side surface of the upper bottom wall portion 22.
  • a fitting projection 28 is integrally formed at the central portion of the upper bottom wall portion 22. As shown in FIG. 7, the fitting protrusion 28 protrudes downward from the upper bottom wall portion 22 and has a reverse conical shape that gradually decreases in diameter toward the tip. The projecting tip surface is rounded to form a curved surface. Further, an upper communication hole 30 is formed in the fitting protrusion 28.
  • the upper communication hole 30 is a circular hole that vertically penetrates the central axis of the fitting projection 28 and has a tapered shape that gradually decreases in diameter toward the lower side. The upper communication hole 30 is connected to the central portion of the locking groove 26.
  • the connecting portion 20 includes a main body portion 32 having a substantially triangular plate shape, and is integrally connected to the fitting portion 18 by a connecting portion 35 whose one side is inclined. ing. Furthermore, bolt holes 36 are formed in the respective corners of the main body 32, and are superposed on a power unit (not shown) to be bolted.
  • the first attachment member 12 having such a structure is attached to the upper end portion of the main rubber elastic body 16.
  • the main rubber elastic body 16 is a rubber elastic body having a substantially quadrangular pyramid shape as a whole. More specifically, the main rubber elastic body 16 has an upper end portion and a lower end portion that are substantially square pillars, and the upper end portion is smaller than the lower end portion in the length direction and the width direction, and the intermediate portion is the lower portion. It has a substantially tapered shape that smoothly connects the upper end portion and the lower end portion.
  • the main rubber elastic body 16 is integrally formed with an upper protrusion 38 protruding from the upper end surface and a lower protrusion 40 protruding from the lower end surface.
  • the upper protrusions 38 are substantially semicircular cross-section protrusions extending in the circumferential direction by a predetermined length, and three upper protrusions 38 are provided on both sides facing each other in the length direction (left-right direction in FIG. 9). Is provided.
  • the lower protrusions 40 are substantially hemispherical protrusions, and a plurality of lower protrusions 40 are provided along the outer peripheral shape of the main rubber elastic body 16, and the plurality of lower protrusions 40 are mutually connected. Separated.
  • a fitting recess 42 opened at the upper end surface, a central recess 44 opened at the lower end surface, and the fitting recess 42 and the central recess 44 are mutually connected.
  • An intermediate communication hole 46 that communicates with each other is formed.
  • the fitting recess 42 is a concave portion having a reverse conical shape corresponding to the fitting protrusion 28 of the first mounting member 12, and has a slightly smaller diameter than the fitting protrusion 28 throughout. ing. Then, the fitting projection 28 of the first mounting member 12 is fitted into the fitting recess 42, and the upper bottom wall portion 22 overlaps the upper end surface (upper projection 38) of the main rubber elastic body 16. Then, the upper end portion of the main rubber elastic body 16 is fitted into the inner peripheral side of the peripheral wall portion 24. Thereby, the first attachment member 12 is non-adhered to the upper end portion of the main rubber elastic body 16.
  • the central recess 44 is a substantially frustum-shaped recess that decreases in diameter toward the upper side, and is open at the center of the lower end surface.
  • the central recess 44 has a depth dimension smaller than that of the fitting recess 42 and a diameter of the opening portion larger than that of the fitting recess 42.
  • the central recess 44 is formed with a predetermined distance downward from the fitting recess 42.
  • the intermediate communication hole 46 has a substantially constant circular cross section and extends linearly up and down in the axial direction.
  • the upper end of the intermediate communication hole 46 opens in the bottom wall of the fitting recess 42, and the lower end of the center recess 44. Open to the upper bottom wall.
  • the intermediate communication hole 46 has a smaller diameter than the upper opening of the upper communication hole 30 formed in the first attachment member 12 and a larger diameter than the lower opening.
  • the lower opening of the upper communication hole 30 is connected to the upper opening of the intermediate communication hole 46.
  • the concave grooves 48 are opened on both side surfaces in the length direction of the main rubber elastic body 16.
  • the concave groove 48 has a substantially semicircular cross section that gradually expands toward the outside in the length direction, and is a linear line that penetrates the lower end portion of the main rubber elastic body 16 in the shape of a substantially rectangular column in the vertical direction. It is a groove.
  • a plurality of concave grooves 48 are formed on the outer peripheral surface of the main rubber elastic body 16, and two concave grooves 48 form a predetermined distance in the width direction on each side surface of the main rubber elastic body 16. It is formed apart.
  • the second attachment member 14 is attached to the main rubber elastic body 16 having such a structure.
  • the second mounting member 14 is a highly rigid member having a groove shape as a whole, and includes a plate-like bottom wall portion 50 and a width of the bottom wall portion 50. A pair of side wall portions 52a and 52b standing on both sides in the direction are integrally provided.
  • the bottom wall portion 50 has a longitudinal plate shape, and both end portions in the length direction are inclined toward the side wall portion 52a, and bolt holes 54 are formed in the inclined portions, respectively, in the plate thickness direction. It penetrates. Further, a lower communication hole 56 penetrating in the plate thickness direction is formed in an intermediate portion of the bottom wall portion 50 in the length direction.
  • the lower communication hole 56 has a small-diameter, substantially circular cross section, has a smaller diameter than the opening of the central recess 44, and a larger diameter than the intermediate communication hole 46.
  • the pair of side wall portions 52a and 52b are formed by bending both end portions in the width direction of the plate material constituting the bottom wall portion 50 to the upper surface side by press working, and continuously over substantially the entire length of the bottom wall portion 50. It is provided and is integrally formed with the bottom wall portion 50. Further, a flange-like portion 58 that extends outward in the width direction is provided at an intermediate portion in the length direction of the side wall portion 52b. The flange-shaped portion 58 is integrally formed with the side wall portion 52b by bending the end portion of the side wall portion 52b that extends partially outward in the width direction.
  • the main rubber elastic body 16 is fitted to the second mounting member 14. That is, the lower end portion of the main rubber elastic body 16 is fitted between the opposing surfaces of the side wall portion 52 a and the side wall portion 52 b, and the lower end surface (lower protrusion 40) of the main rubber elastic body 16 is overlapped with the bottom wall portion 50. Is done.
  • the bottom wall portion 50 of the second attachment member 14 is provided with a pair of flange walls 60a and 60b that are opposed in the length direction, and the pair of flange walls 60a and 60b are elastic rubber bodies. It is overlaid on the outer peripheral surface of the lower end of the body 16.
  • the eaves wall portions 60a and 60b are formed by partially cutting and raising the intermediate portion of the bottom wall portion 50 from the outside in the longitudinal direction toward the inside, and the inner side in the width direction with respect to the side walls 52a and 52b. Are provided apart from each other.
  • the eaves wall portions 60a and 60b are formed by cutting and raising the bottom wall portion 50, the eaves wall portions 60a and 60b are respectively formed on the bottom wall portion 50 at portions where the eaves wall portions 60a and 60b are out of the length direction.
  • a window portion 62 is formed through.
  • the heel wall portion 60a and the heel wall portion 60b have substantially the same shape.
  • a lower communication hole 56 is formed in the middle of the pair of flange wall portions 60a and 60b. In the present embodiment, the lower communication hole 56 is formed at a position separated from each of the flange wall portions 60a and 60b by the same distance. ing.
  • the eaves wall portions 60a and 60b are formed by cutting and raising the bottom wall portion 50, the peripheral edges of the eaves wall portion 60a and the eaves wall portion 60b are both angular at both edge portions in the plate thickness direction.
  • the upper end edge part 64 is formed in the upper end edge of each opposing surface of the coffin wall part 60a and the coffin wall part 60b, and it is located in the width direction both ends edge of each opposing surface of the coffin wall part 60a and the coffin wall part 60b. End edge portions 66 are respectively formed. Further, in the present embodiment, as shown in FIGS.
  • the window portion 62 has an arc shape on the bottom wall portion 50 on both sides in the width direction of the respective base end portions of the ridge wall portions 60 a and 60 b. It is said that. And this window part 62 has spread so that it may go inward toward the opposing direction inner side of a pair of wall part 60a, 60b, and the width direction inner side of each wall part 60a, 60b. Thereby, in the base end part of each wall part 60a, 60b, the width direction dimension (horizontal direction dimension in FIG. 12) is made small so that it can be beaten from both sides.
  • a lower end portion of the main rubber elastic body 16 is formed in a portion surrounded by the pair of sidewall portions 52a, 52b and the pair of collar wall portions 60a, 60b.
  • a recess-shaped region corresponding to the outer shape is formed.
  • the lower end portion of the main rubber elastic body 16 is fitted into the recess-like region and assembled to the second mounting member 14 without bonding.
  • the pair of side wall portions 52a and 52b and the pair of flange wall portions 60a and 60b are overlapped with the outer peripheral surface of the lower end portion of the main rubber elastic body 16, whereby the main rubber elastic body 16 becomes the second mounting member. 14 in the length direction and the width direction.
  • the lower end portion of the main rubber elastic body 16 is pressed against the side wall portions 52a and 52b and the flange wall portions 60a and 60b, and is pressed in the opposing direction of the opposite sides so that the central recess 44 is substantially omitted.
  • the second mounting member 14 is fitted in a radially compressed state. Thereby, the main rubber elastic body 16 is prevented from coming off from the second mounting member 14, and the main rubber elastic body 16 and the second mounting member 14 are held in the assembled state.
  • each of the wall portions 60a and 60b rises vertically from the bottom wall portion 50 in order to advantageously obtain a contact holding force to the lower end portion of the main rubber elastic body 16, but the main body Considering the assembly workability and holding force of the rubber elastic body 16 and the specific shape of the lower end portion of the main rubber elastic body, the pair of wall portions 60a and 60b are opposed to each other upward. It is also possible to incline so that the space between the surfaces expands or narrows.
  • the part located in the both sides of the length direction in the outer peripheral surface of the main body rubber elastic body 16 is length with respect to each upper end edge part 64 of the wall part 60a, 60b, as FIG. 15 shows. In the direction, it is separated by a predetermined distance: d1.
  • the lower end portion of the main rubber elastic body 16 having a substantially quadrangular prism shape is positioned below the upper end edge portion 64, and an intermediate portion of the main rubber elastic body 16 having a substantially tapered shape is formed on the upper end edge portion 64.
  • the outer peripheral surface of the main rubber elastic body 16 is spaced inward in the length direction with respect to the upper edge portion 64 by being overlapped in the length direction.
  • each of the side end edge portions 66 provided on the wall portions 60 a and 60 b is a groove 48 with respect to the outer peripheral surface of the main rubber elastic body 16.
  • the outer peripheral surface of the main rubber elastic body 16 is separated from each side edge portion 66 in the longitudinal direction by a predetermined distance: d2.
  • the concave groove 48 of the present embodiment is a linear groove extending in the vertical direction along each side edge portion 66, and is a main rubber elastic body.
  • Each side edge portion 66 is positioned on the concave groove 48 over the entire length by vertically passing through the fitting portion of the 16 to the second mounting member 14.
  • the first mounting member 12 and the second mounting member 14 are attached to the main rubber elastic body 16 without being bonded, the first mounting member 12 is fitted.
  • the protrusion 28 and the flanges 60a, 60b of the second mounting member 14 overlap each other by a predetermined width: t in the projection in the length direction.
  • a gate-shaped member 68 as shown in FIG. 16 is attached to the second attachment member 14.
  • the gate-shaped member 68 is a member formed by bending a plate-like metal material in the plate thickness direction by pressing, and both end portions (the lower end of the gate column portion) are in the length direction of the second mounting member 14. Are connected to both ends by means such as bolt fixing. Further, reinforcing ribs 70 projecting upward are integrally formed at both end edges in the width direction of the gate-shaped member 68, and the gate-shaped member 68 has a substantially groove shape opening upward.
  • the second attachment member 14 and the gate-shaped member 68 are both connected and fixed to each other by bolts at both ends in the length direction, and are attached to a vehicle body (not shown) by the bolts.
  • the gate-shaped member 68 is disposed so as to straddle the upper side of the first mounting member 12, and the second of the first mounting member 12 is brought into contact with the first mounting member 12 and the portal-shaped member 68.
  • a rebound stopper mechanism for limiting the relative displacement relative to the mounting member 14 is configured.
  • the cushioning rubber 74 is put on the first mounting member 12 so as to cover the upper end surface, and the contact impact between the first mounting member 12 and the portal member 68 is the cushioning rubber 74. It has come to be relaxed by.
  • the buffer rubber 74 is provided with a locking projection 76 extending in the length direction, and the locking projection 76 is inserted into the locking groove 26 of the first mounting member 12 and locked.
  • the buffer rubber 74 is prevented from coming off from the first mounting member 12.
  • a positioning protrusion is formed on the upper end surface of the shock absorbing rubber 74, and the first mounting member 12 is connected to the gate by positioning the protrusion in the positioning through hole formed in the portal member 68. It is arranged at a predetermined relative position with respect to the shape member 68.
  • the main rubber elastic body 16 is supported in the length direction by a pair of ribs 60a, 60b provided on the second mounting member 14, and the main rubber elastic body 16 is positioned in the length direction with respect to the second mounting member 14.
  • the load resistance in the length direction is improved, and the target reliability and spring characteristics can be realized.
  • the pair of wall portions 60 a and 60 b are formed integrally with the bottom wall portion 50 by partially raising the bottom wall portion 50. As a result, an increase in the number of parts due to the formation of the wall portions 60a and 60b is avoided, so that the structure is prevented from becoming complicated and the number of manufacturing steps can be prevented from increasing.
  • the pair of ridge wall portions 60a and 60b are formed by cutting and raising the bottom wall portion 50, the protruding height of the ridge wall portions 60a and 60b can be set sufficiently large. . Therefore, excellent load resistance is exhibited in the length direction, and the spring constant of the main rubber elastic body 16 can be set large in the length direction. Therefore, the degree of freedom in tuning the spring characteristics can be increased, and the desired vibration isolation characteristics can be realized more advantageously.
  • the second mounting member 14 has a groove shape, and the main rubber elastic body 16 is supported by the pair of side wall portions 52a and 52b in the width direction. Thereby, the main rubber elastic body 16 is positioned with respect to the second mounting member 14 also in the width direction, and excellent reliability and spring characteristics can be realized.
  • the upper end edge portion 64 and the side end edge portion 66 of the pair of wall portions 60a, 60b are both separated in the length direction from the outer peripheral surface of the main rubber elastic body 16, and the main rubber elastic body Contact to 16 is avoided. As a result, it is possible to prevent problems such as a crack in the main rubber elastic body 16 due to contact with the angular edges 64, 66, and avoid a decrease in durability.
  • the side end edge portion 66 is positioned on the concave groove 48, the outer peripheral surface of the main rubber elastic body 16 is separated from the side end edge portion 66. According to this, it is possible to prevent the shape of the main rubber elastic body 16 from being significantly limited in order to realize the separation from the side edge portion 66, and to advantageously realize the required vibration isolation characteristics. be able to.
  • the pair of wall portions 60 a and 60 b are cut and raised from the outside toward the inside in the length direction of the bottom wall portion 50.
  • the window part 62 by the raising and lowering of the collar wall parts 60a, 60b is formed outside the fitting part of the main rubber elastic body 16 in the length direction of the bottom wall part 50. Therefore, sufficient load resistance in the axial direction is ensured, and the main rubber elastic body 16 can be prevented from coming into contact with the edge of the window portion 62 and being damaged, thereby improving durability.
  • the central recess 44 is formed in the lower end portion of the main rubber elastic body 16, the lower end portion of the main rubber elastic body 16 is allowed to bulge inwardly in the length direction and the width direction. . Thereby, when the main rubber elastic body 16 is deformed, the outward bulge in the length direction and the width direction is suppressed, and the main rubber elastic body 16 is in contact with the upper edge portion 64 and the side edge portion 66. It is prevented more effectively.
  • a plurality of lower protrusions 40 are formed on the lower end surface of the main rubber elastic body 16, and the bottom surface of the main rubber elastic body 16 is the second attachment member 14 in a single product state before being mounted on the automobile.
  • the contact force to the bottom wall portion 50 on the bottom surface of the main rubber elastic body 16 can be reduced. It has been. Thereby, even if the base end part of each wall part 60a, 60b stands
  • the occurrence of problems due to the side end edge portions 66 and 66 on both sides in the width direction of the base end portion being pressed against the main rubber elastic body 16 can be reduced.
  • the fitting protrusion 28 is formed on the first attachment member 12 and is inserted into the fitting recess 42 of the main rubber elastic body 16, and the pair of flange walls 60 a of the second attachment member 14, Since 60b is formed by cutting and raising the bottom wall portion 50, it has a sufficient protruding height.
  • the fitting protrusion 28 of the first mounting member 12 and the flange wall portions 60a, 60b of the second mounting member 14 overlap each other in the projection in the length direction.
  • the main rubber elastic body 16 is interposed between the wall portions 60a and 60b.
  • the upper communication hole 30 of the first attachment member 12, the intermediate communication hole 46 of the main rubber elastic body 16, and the lower communication hole 56 of the second attachment member 14 are connected in series in the axial direction.
  • a communication hole penetrating vertically on the central axis of the engine mount 10 is formed.
  • the main rubber elastic body 16 is not necessarily limited to a substantially quadrangular frustum shape, and a substantially frustum main rubber elastic body or the like can also be used.
  • the side wall portion and the collar wall portion of the second mounting member have curved portions along the outer peripheral surface shape of the main rubber elastic body.
  • the escape from the side edge portion 66 of the outer peripheral surface of the main rubber elastic body 16 is realized by the concave groove 48, but the outer peripheral surface of the main rubber elastic body 16 is the side end edge portion 66.
  • the same effect can be obtained even in other embodiments. For example, if the width-direction dimensions at both ends in the length direction of the main rubber elastic body are smaller than those of the wall portions 60a and 60b, it is possible to prevent the durability from being lowered as in the above embodiment.
  • the first embodiment is provided on both side surfaces in the length direction in which the wall portions 60 a and 60 b are overlapped.
  • Steps 80, 80 are formed at positions substantially corresponding to the concave grooves 48, 48 of the form.
  • Each step 80 extends linearly in the up-and-down direction (the height direction of the wall portions 60a and 60b), whereby both outer side surfaces 82 and 82 positioned outside each step 80 are formed into steps 80, Compared to the central surface 84 located between 80, it has a shape recessed inward by a predetermined dimension: d2.
  • the same reference numerals as those in the first embodiment are assigned to members and parts having the same structure as that in the first embodiment in order to facilitate understanding. Keep it.
  • the main rubber elastic body 16 is assembled to the second mounting member 14 with non-adhesive and good holding force. While making this possible, the first mounting of the first mounting member 14 such as relaxing the concentration of distortion of the main rubber elastic body 16 at the contact portion of the flange wall portions 60a and 60b and ensuring durability, etc. Any of the same effects as those of the embodiment can be effectively exhibited.
  • a groove is formed in the outer peripheral surface of the main rubber elastic body 16 and extends in the width direction, and the upper edge portion 64 is positioned on the groove, Similarly, it is possible to prevent the main rubber elastic body 16 from coming into contact with the upper edge portion 64 and to ensure durability.
  • the mounting structure of the first mounting member 12 to the power unit and the mounting structure of the second mounting member 14 to the vehicle body are not particularly limited, and may be appropriately changed according to the structure on the vehicle side. obtain. Furthermore, the first attachment member 12 may be attached to the vehicle body, and the second attachment member 14 may be attached to the power unit.
  • the present invention is not only applied to automobiles, but can also be suitably applied to motorcycles, railway trains, industrial automobiles, and the like. Furthermore, the present invention is not limited to a vibration isolator used as an engine mount, and can be applied to various vibration isolators such as a subframe mount and a body mount.
  • 10 engine mount (vibration isolator), 12: first mounting member, 14: second mounting member, 16: main rubber elastic body, 28: fitting projection, 44: central recess, 48: concave groove 50: bottom wall portion, 52: side wall portion, 60: heel wall portion, 64: upper edge portion, 66: side edge portion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un dispositif amortisseur de vibrations présentant une nouvelle structure, et qui tout en permettant le positionnement d'un corps principal élastique en caoutchouc aussi bien dans la direction latérale que longitudinale d'un second élément de montage, permet la mise en pratique d'excellentes propriétés de résistance aux charges et de durabilité. Plus précisément, l'invention concerne un dispositif amortisseur de vibrations présentant une structure de non adhérence dans laquelle le second élément de montage est ajusté à l'aide du corps principal élastique en caoutchouc (16) sur un premier élément de montage disposé en regard. Le second élément de montage (14) possède une forme de rainure équipée d'une partie paroi de fond (50) et d'une paire de parties paroi latérale (52a, 52b). La partie paroi de fond (50) est partiellement découpée et relevée pour qu'une paire de parties paroi verticale (60a, 60b) se dresse. Le corps principal élastique en caoutchouc (16) est ajusté par non adhérence sur une zone entourée par la paire de parties paroi latérale (52a, 52b) et la paire de parties paroi verticale (60a, 60b). En outre, la face périphérique externe du corps principal élastique en caoutchouc (16) est éloignée côté interne et dans la direction longitudinale de manière individuelle par rapport à chaque partie bord d'extrémité supérieure (64) et à chaque partie bord d'extrémité latérale (66) de la paire de parties paroi verticale (60a, 60b).
PCT/JP2011/003500 2010-07-02 2011-06-20 Dispositif amortisseur de vibrations WO2012001906A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112011100079.0T DE112011100079B4 (de) 2010-07-02 2011-06-20 Antischwingungsvorrichtung
JP2011546497A JP5244244B2 (ja) 2010-07-02 2011-06-20 防振装置
CN201180003106.1A CN102483126B (zh) 2010-07-02 2011-06-20 隔振装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010151661 2010-07-02
JP2010-151661 2010-07-02

Publications (1)

Publication Number Publication Date
WO2012001906A1 true WO2012001906A1 (fr) 2012-01-05

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PCT/JP2011/003500 WO2012001906A1 (fr) 2010-07-02 2011-06-20 Dispositif amortisseur de vibrations

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JP (1) JP5244244B2 (fr)
CN (1) CN102483126B (fr)
DE (1) DE112011100079B4 (fr)
WO (1) WO2012001906A1 (fr)

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WO2016052035A1 (fr) * 2014-10-03 2016-04-07 株式会社ブリヂストン Dispositif d'isolation de vibrations
JP2017155754A (ja) * 2016-02-29 2017-09-07 住友理工株式会社 防振装置
EP3492773A4 (fr) * 2016-07-27 2019-08-14 Bridgestone Corporation Dispositif d'amortissement de vibrations

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WO2016184068A1 (fr) * 2015-05-19 2016-11-24 中车青岛四方车辆研究所有限公司 Ressort auxiliaire non linéaire, capsule à courroie, et ressort pneumatique
CN105150823B (zh) * 2015-10-21 2017-12-22 安徽江淮汽车集团股份有限公司 发动机悬置及汽车
JP7023642B2 (ja) * 2017-09-01 2022-02-22 倉敷化工株式会社 防振構造

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JP2003074635A (ja) * 2001-08-30 2003-03-12 Nok Corp 防振支持装置及びその製造方法
JP2009216127A (ja) * 2008-03-07 2009-09-24 Toyo Tire & Rubber Co Ltd 防振ブッシュの取付金具
JP2009216177A (ja) * 2008-03-10 2009-09-24 Tokai Rubber Ind Ltd バウンドストッパ

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WO2016052035A1 (fr) * 2014-10-03 2016-04-07 株式会社ブリヂストン Dispositif d'isolation de vibrations
JP2016075322A (ja) * 2014-10-03 2016-05-12 株式会社ブリヂストン 防振装置
US10337585B2 (en) 2014-10-03 2019-07-02 Bridgestone Corporation Vibration isolation device
JP2017155754A (ja) * 2016-02-29 2017-09-07 住友理工株式会社 防振装置
EP3492773A4 (fr) * 2016-07-27 2019-08-14 Bridgestone Corporation Dispositif d'amortissement de vibrations

Also Published As

Publication number Publication date
DE112011100079B4 (de) 2016-05-12
JPWO2012001906A1 (ja) 2013-08-22
DE112011100079T5 (de) 2012-09-20
CN102483126B (zh) 2013-08-28
CN102483126A (zh) 2012-05-30
JP5244244B2 (ja) 2013-07-24

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