WO2011125667A1 - Dispositif d'isolation contre les vibrations - Google Patents

Dispositif d'isolation contre les vibrations Download PDF

Info

Publication number
WO2011125667A1
WO2011125667A1 PCT/JP2011/057870 JP2011057870W WO2011125667A1 WO 2011125667 A1 WO2011125667 A1 WO 2011125667A1 JP 2011057870 W JP2011057870 W JP 2011057870W WO 2011125667 A1 WO2011125667 A1 WO 2011125667A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
fitting
vibration
leg
body member
Prior art date
Application number
PCT/JP2011/057870
Other languages
English (en)
Japanese (ja)
Inventor
隆 川嶋
慶太 西川
勝己 染谷
Original Assignee
株式会社ブリヂストン
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
Priority claimed from JP2010082245A external-priority patent/JP2011214634A/ja
Priority claimed from JP2010081940A external-priority patent/JP5681371B2/ja
Priority claimed from JP2010081074A external-priority patent/JP2011214608A/ja
Application filed by 株式会社ブリヂストン filed Critical 株式会社ブリヂストン
Publication of WO2011125667A1 publication Critical patent/WO2011125667A1/fr

Links

Images

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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3842—Method of assembly, production or treatment; Mounting thereof
    • F16F1/3849—Mounting brackets therefor, e.g. stamped steel brackets; Restraining links

Definitions

  • the present invention relates to a vibration isolator that is used when, for example, a vibration generating unit such as an automobile engine is mounted on a vibration receiving unit such as a vehicle body.
  • a vibration isolator including a main body member in which an elastic body (elastic leg) is joined to an attachment portion (first attachment member) attached to the body.
  • the elastic body is provided with two leg main body portions each having an extendable leg portion protruding toward the bracket and a fitting portion provided at the tip of the leg portion. These leg main body portions are disposed below the attachment portion so as to be separated from each other as the distance from the attachment portion increases.
  • a fitting concave portion (press-fit concave portion) into which the fitting portion is fitted is formed on the bottom plate portion side of the side plate portion of the bracket.
  • limits the displacement to the upper direction of an attachment part is provided in the upper part of the bracket.
  • the bracket is formed in a cylindrical shape by a pair of side plate portions, a bottom plate portion, and a stopper portion.
  • the main body member is assembled inside the bracket by press-fitting the tip end portion (fitting portion) of the leg main body portion into the fitting concave portion of the bracket.
  • a gap is formed between the upper end portion (upper stopper portion) of the mounting portion and the stopper portion of the bracket.
  • a bracket is attached to a vibration receiving portion, and a vibration generating portion is attached to the attachment portion.
  • the elastic body absorbs the vibration, and the vibration transmitted to the vibration receiving unit is reduced.
  • the vibration generating part vibrates with a large amplitude in the vertical direction
  • the upper end of the mounting part collides with the stopper part when rebounding (when the vibration generating part leaves the vibration receiving part), and the upward displacement of the mounting part is Be regulated.
  • the tensile force which acts on the leg part of an elastic body is restrict
  • a bracket (bracket fitting) attached to one of the vibration generating unit and the vibration receiving unit and the other of the vibration generating unit and the vibration receiving unit are attached.
  • a vibration isolator including a main body member in which an elastic body is joined to an attachment portion (inner cylinder).
  • the elastic body is provided with a pressure contact portion having a leg portion protruding toward the bracket and a fitting portion provided at the tip of the leg portion.
  • the bracket is provided with a cylindrical portion (bracket cylindrical portion) into which the main body member is fitted, and side plate portions disposed on both sides of the cylindrical portion in the axial direction.
  • the fitting portion is pressed from the outside in the axial direction by the side plate portion.
  • the edge of the side plate is in contact with the surface of the leg portion of the elastic body, so that when the vibration in the axial direction is input, the edge of the side plate is There is a possibility that the leg will be scratched. Since the leg portion expands and contracts at the time of vibration input, if the leg portion is scratched, the scratch easily develops, and even a small scratch causes a decrease in performance and a life of the elastic body (leg portion).
  • the present invention has been made in consideration of the above-described conventional problems, and provides a vibration isolator capable of suppressing a drop in performance and life of an elastic body and preventing a main body member from coming out of a bracket. It is an object.
  • the vibration isolator includes a bracket attached to one of the vibration generator and the vibration receiver, and an attachment attached to the other of the vibration generator and the vibration receiver.
  • a main body member having an elastic body joined to the mounting portion.
  • the elastic body includes an extendable leg portion that is disposed on one side in the vertical direction of the mounting portion and protrudes toward the bracket, and a fitting portion that is provided at a tip of the leg portion.
  • the bracket is disposed on one side in the vertical direction of the mounting portion and the fitting recess is engaged with the fitting portion, and the bracket is disposed on the other side in the vertical direction of the mounting portion and the vertical direction of the mounting portion.
  • a stopper portion that restricts displacement to the other side.
  • the main body member is assembled to the bracket in a state where the main body member is sandwiched at least between the stopper portion and the fitting concave portion in a vertical direction and a compression force is applied to the leg portion.
  • the attachment portion in a state where the main body member is assembled to the bracket, the attachment portion is pressed against the stopper portion, and the leg portion is compressed.
  • the mounting part is bracketed by the static load (support load) of the vibration generating part. Is displaced toward one side in the vertical direction relatively, and a gap is formed between the mounting portion and the stopper portion.
  • the mounting part is displaced relative to the bracket, but the body member is assembled to the bracket in a state where the leg part is compressed.
  • the compression force is applied to the legs. Even if the attachment portion is relatively displaced until it comes into contact with the stopper portion at the time of rebound, the leg portion is hardly pulled and the leg portion is compressed. Therefore, even when rebounding, the fitting portion is not separated from the fitting recess, and the fitting portion is always in pressure contact with the fitting recess. Even when a large displacement is repeatedly input to the rebound side, the leg portion is always compressed.
  • the leg creeps due to heat from the engine, and the root R becomes small, and the root may become the starting point of the crack, but since it is always in a compressed state, the crack generation can be suppressed. it can.
  • the bracket includes a cylindrical portion that extends horizontally and has the main body member fitted therein, and the fitting portion is pressed from the outside in the axial direction at an axial end portion of the cylindrical portion.
  • a retaining portion may be provided. In this case, the movement of the fitting portion relative to the fitting concave portion relative to the fitting concave portion is restricted by the retaining portion, and the main body member is prevented from slipping out from the bracket inner side in the axial direction.
  • the leg portion expands and contracts when vibration is input, if the leg portion is scratched, the scratch easily develops, and even a small scratch causes a decrease in performance and a life of the elastic body (leg portion). Therefore, the edge of the retaining portion may be in contact with the fitting portion. In this case, when the leg portion is compressed, its surface bulges outward in the axial direction, but even if the surface of the leg portion bulges, it is not pressed against the edge of the retaining portion, and the retaining portion The edges of the leg prevent the leg surface from being scratched.
  • the said fitting part may protrude in the said axial direction outer side rather than the said leg part, and the level
  • the bracket consists of two parts.
  • the body member is assembled with the bracket by sandwiching the body member with these two parts and joining them by caulking or the like, a joining process for joining the two parts is required.
  • the assembly process becomes complicated.
  • the bracket is composed of two parts, the number of parts increases.
  • the bracket may be a single component, and the main body member may be press-fitted inside the bracket. In this case, the joining process as described above is unnecessary, the number of parts is reduced, and further, the overlapping portion described above is unnecessary.
  • the vibration isolator is attached to one of the vibration generating unit and the vibration receiving unit, and to the other of the vibration generating unit and the vibration receiving unit.
  • a main body member having an elastic body joined to the mounting portion.
  • the elastic body includes an extendable leg portion protruding toward the bracket, and a fitting portion provided at the tip of the leg portion.
  • the bracket includes a cylindrical portion that extends horizontally and has the main body member fitted therein. An end portion in the axial direction of the cylindrical portion is provided with a retaining portion that presses the fitting portion from the outside in the axial direction, and an edge portion of the retaining portion is brought into contact with the fitting portion, and this fitting is performed.
  • the portion protrudes outward in the axial direction from the leg portion, and a step is formed between the fitting portion and the leg portion.
  • the movement of the fitting portion relative to the fitting recess relative to the fitting recess is restricted by the retaining portion, and the main body member is prevented from slipping out from the inner side of the bracket to the outer side in the axial direction. Is done.
  • the surface bulges outward in the axial direction but the edge of the retaining portion is in contact with the fitting portion, so the surface of the leg portion Even if bulges out, it is not pressed against the edge of the retaining portion. Therefore, the leg surface is prevented from being damaged by the edge of the retaining portion.
  • a step is formed between the fitting portion and the leg portion, even if the surface of the fitting portion is damaged by the edge portion of the retaining portion, the damage hardly propagates to the leg portion.
  • leg portion is disposed on one side in the vertical direction of the mounting portion
  • the bracket is disposed on one side in the vertical direction of the mounting portion
  • the fitting portion is fitted.
  • a concave portion and a stopper portion that is disposed on the other vertical side of the mounting portion and restricts displacement of the mounting portion to the other vertical direction, and the body member is fitted to at least the stopper portion and the fitting portion You may be assembled
  • the mounting portion in a state where the main body member is assembled to the bracket, the mounting portion is pressed against the stopper portion, and the leg portion is compressed.
  • the mounting part is bracketed by the static load (support load) of the vibration generating part. Is displaced toward one side in the vertical direction relatively, and a gap is formed between the mounting portion and the stopper portion.
  • the mounting part is displaced relative to the bracket, but the body member is assembled to the bracket in a state where the leg part is compressed.
  • the compression force is applied to the legs. Even if the mounting portion is relatively displaced until it comes into contact with the stopper portion at the time of rebound, the leg portion is not pulled and the leg portion is compressed. Therefore, even when rebounding, the fitting portion is not separated from the fitting recess, and the fitting portion is always in pressure contact with the fitting recess. Even when a large displacement is repeatedly input to the rebound side, the leg portion is always compressed.
  • the leg creeps due to heat from the engine, and the root R becomes small, and the root may become the starting point of the crack, but since it is always in a compressed state, the crack generation can be suppressed. it can.
  • the bracket consists of two parts.
  • the body member is assembled with the bracket by sandwiching the body member with these two parts and joining them by caulking or the like, a joining process for joining the two parts is required.
  • the assembly process becomes complicated.
  • the bracket is composed of two parts, the number of parts increases.
  • the bracket may be a single component, and the main body member may be press-fitted inside the bracket. In this case, the joining process as described above is unnecessary, the number of parts is reduced, and further, the overlapping portion described above is unnecessary.
  • the 1st aspect of this invention even if it is a case where a big displacement is repeatedly input into the rebound side, a leg part will always be in the state compressed.
  • the leg R creeps due to the heat from the engine, and the root R becomes small, and the root may become the starting point of the crack. It is possible to suppress a decrease in performance and a lifetime of the elastic body.
  • the fitting portion is always in pressure contact with the fitting recess, so that the frictional force between the fitting portion and the fitting recess is maintained.
  • the frictional force can prevent the main body member from coming out of the bracket. Therefore, even when vertical vibration is input and the attachment portion is displaced in the axial direction relative to the bracket, the main body member is difficult to come out of the bracket, and the main body member and the bracket are separated. Can be prevented.
  • the 2nd aspect of this invention since the movement to the axial direction outer side of a fitting part is controlled by the securing part, it can prevent that a main body member slips out from the inner side of a bracket. Further, since the edge of the retaining portion is in contact with the fitting portion and the edge of the retaining portion is not pressed against the leg, it is possible to prevent the leg from being damaged by the edge of the retaining portion. . In addition, a step is formed between the fitting part and the leg part, and even if the fitting part is damaged by the edge of the retaining part, the damage does not easily propagate to the leg part. Formation of cracks can be prevented. Accordingly, it is possible to suppress a decrease in performance and a life of the elastic body.
  • FIG. 2 is a cross-sectional view taken along line AA shown in FIG. It is a front view of the vibration isolator in the 1st modification of this invention. It is a front view of the vibration isolator in the 2nd modification of this invention.
  • FIG. 1 is a front view of the vibration isolator 1 in the present embodiment
  • FIG. 2 is an exploded perspective view of the vibration isolator 1.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG.
  • the vibration isolator 1 of the present embodiment is the direction in which a static load (support load) is input when the lower side in FIG. 1 is the bounce side, that is, when the vibration isolator 1 is installed.
  • the upper side is the rebound side, that is, the opposite side of the static load input direction.
  • the bound side is referred to as “lower side”
  • the rebound side is referred to as “upper side”
  • the bound-rebound direction (Z direction shown in FIG. 2) is referred to as “vertical direction”.
  • the axial direction (Y direction shown in FIG. 2) of the cylindrical portion 22 and the mounting portion 4 of the bracket 2 to be described later is the vehicle left-right direction, and is hereinafter referred to as “axial direction”.
  • a horizontal direction (X direction shown in FIG. 2) orthogonal to the axial direction of the cylindrical portion 22 and the mounting portion 4 is the vehicle front-rear direction, and is hereinafter referred to as “width direction”.
  • the vibration isolator 1 is a vehicle engine mount for mounting an unillustrated engine (corresponding to a vibration generating portion in the present invention) on a not-shown vehicle body (corresponding to a vibration receiving portion in the present invention). This is a device for reducing vibration transmitted from the engine to the vehicle body.
  • the vibration isolator 1 includes a bracket 2 attached to a vehicle body (not shown), and a main body member 3 assembled inside the bracket 2.
  • the main body member 3 includes a mounting portion 4 that is attached to an engine (not shown) via an engine bracket (not shown), and an elastic body 5 that is joined to the mounting portion 4 and is held by the bracket 2.
  • the mounting portion 4 is a cylindrical metal fitting that is open at both ends, and is an inner cylinder disposed inside the bracket 2.
  • the mounting portion 4 is disposed so as to extend in a direction parallel to an axis of a cylindrical portion 22 described later in the bracket 2. Further, a fastening member such as a bolt (not shown) for fastening to an engine bracket (not shown) is inserted inside the mounting part 4, and the engine bracket is connected to an end of the mounting part 4.
  • the elastic body 5 is a rubber elastic body made of a rubber material such as natural rubber, styrene / butadiene rubber (SBR), or butadiene rubber (BR), and is vulcanized and molded together with the mounting portion 4 to form the mounting portion 4. It is joined to the outer peripheral surface.
  • the elastic body 5 includes a bounce buffer 50 disposed below the mounting portion 4, a rebound buffer 51 disposed above the mounting portion 4, and both sides of the mounting portion 4 in the width direction.
  • the bound buffer portion 50 is a rubber body that covers the lower surface of the mounting portion 4, and is formed in a substantially triangular shape that is gradually reduced in width as viewed in the direction of the arrow from the axial direction.
  • the rebound buffer portion 51 is a rubber body that covers the upper surface of the attachment portion 4, and is formed in an arc shape formed along the upper surface of the attachment portion 4 when viewed from the axial direction.
  • the side buffer parts 52, 52 are rubber bodies that cover the side surfaces of the attachment part 4, and protrude toward the outer side in the width direction.
  • the leg portion 53 is a support portion that is disposed on the lower side (one side in the vertical direction) of the mounting portion 4 and supports the mounting portion 4, and is disposed at a position that is compressed when a static load is applied. . Further, the pair of leg portions 53 and 53 are disposed symmetrically with respect to the central vertical line of the attachment portion 4. More specifically, the pair of leg portions 53, 53 project obliquely downward from the bound buffer portion 50, are arranged close to the lower side of the mounting portion 4, and are viewed in the direction of the arrow from the axial direction. It arrange
  • the fitting part 54 is a fixed part fixed to the bracket 2 and protrudes from the lower end of the leg part 53 outward in the width direction. More specifically, the fitting portion 54 is formed in a substantially rectangular parallelepiped shape, and the fitting portion 54 includes an upper surface 54 a that protrudes outward in the width direction from the lower end of the inclined outer surface 53 a of the leg portion 53, and A side surface 54b extending downward in the vertical direction from the tip of the upper surface 54a and a lower surface 54c extending horizontally from the lower end of the side surface 54a toward the inner side in the width direction are formed.
  • the surfaces 54d on both sides in the axial direction of the fitting portion 54 protrude outward in the axial direction from the surface 53b facing the outside in the axial direction of the leg portion 53, and the surfaces 54d on both sides in the axial direction of the fitting portion 54 A step 55 is formed between the surface 53 b of the leg portion 53.
  • the bracket 2 is a metal fitting that surrounds and holds the main body member 3. More specifically, the bracket 2 extends downward from a lower plate 20 extending along the width direction, a rectangular upper plate portion (not shown) parallel to the horizontal plane, and both widthwise end portions of the upper plate portion. And an upper plate 21 composed of a pair of side plate portions (not shown). In the bracket 2, lower ends on both sides in the width direction of the upper plate 21 are placed on the upper surface of the lower plate 20, and lower ends on both sides in the width direction of the upper plate 21 are welded to the upper surface of the lower plate 20. Both axial ends of the side plate portion of the upper plate 21 are welded to rib plates 28 described later.
  • the bracket 2 is formed with a rectangular tubular portion 22 that extends in the axial direction and into which the main body member 3 is fitted. Further, the bracket 2 is a single component in which a bound stopper portion 23, a side stopper portion 24, a rebound stopper portion 25, and a fitting concave portion 26, which will be described later, are integrally formed.
  • Both end portions of the lower plate 20 protrude outward in the width direction of the upper plate 21 (cylindrical portion 22) and extend toward the outer side in the width direction.
  • Bolt holes 27 through which bolts (not shown) for fastening to a vehicle body (not shown) are inserted are formed at both ends of the lower plate 20.
  • rib plates 28 extending vertically upward are respectively provided on both side portions in the axial direction of both ends of the lower plate 20.
  • a bound stopper portion 23 that restricts the downward displacement of the attachment portion 4 is formed on the lower surface portion of the cylindrical portion 22, that is, the central portion in the length direction (width direction) of the lower plate 20.
  • the bound stopper portion 23 abuts against the bound buffer portion 50 when the attachment portion 4 is displaced downward in the vertical direction to a certain position relative to the bracket 2 so that the attachment portion 4 is displaced downward. It is the part to regulate. More specifically, the bound stopper portion 23 is a convex portion protruding upward, and is disposed between the pair of leg portions 53 and 53 (fitting portions 54 and 54) and the bound buffer portion. It is arranged below 50 at a distance.
  • side stopper portions 24 for restricting the displacement of the mounting portion 4 to the outside in the width direction are formed on the side surface portions on both sides in the width direction of the cylindrical portion 22, that is, on the side plate portions on both sides in the width direction of the upper plate 21. Yes.
  • the side stopper portion 24 abuts on the side buffer portion 52 when the mounting portion 4 is displaced outward in the width direction to a certain position relative to the bracket 2, and the side stopper portion 24 is displaced outward in the width direction of the mounting portion 4.
  • the side buffering part 52 is disposed at an interval on the outer side in the width direction.
  • the fitting recess 26 is a recess that is recessed toward the radially outer side of the cylindrical portion 22. More specifically, the fitting recess 26 includes an upper surface 26a that protrudes outward in the width direction from the lower end of the side stopper portion 24, a side surface 26b that extends downward from an end portion of the upper surface 26a in the width direction, and a side surface. It is formed by the horizontal lower surface 26c formed between the lower end of 26b and the above-mentioned bound stopper part 23.
  • the upper surface 26 a of the fitting recess 26 is in close contact with the upper surface 54 a of the fitting portion 54. Further, the side surface 26 b of the fitting recess 26 is in close contact with the side surface 54 b of the fitting portion 54. Further, the lower surface 26 c of the fitting recess 26 is in close contact with the lower surface 54 c of the fitting portion 54.
  • a rebound stopper portion 25 (corresponding to the stopper portion in the present invention) that restricts the displacement of the mounting portion 4 in the vertical direction is formed in the upper portion of the cylindrical portion 22, that is, the upper plate portion of the upper plate 21.
  • the rebound stopper portion 25 is a portion that regulates the upward displacement of the attachment portion 4 when the attachment portion 4 is displaced upward in the vertical direction to a certain position relative to the bracket 2. 51 is in pressure contact.
  • a retaining portion 29 for pressing the fitting portion 54 from the outside in the axial direction is provided.
  • the retaining portion 29 is a plate portion erected along the vertical direction from side end portions on both sides in the axial direction of the lower surface portion of the cylindrical portion 22, and is formed flush with and integrally with the rib plate 28. .
  • the retaining portion 29 is formed in a substantially L shape when viewed from the axial direction, and its edge (edge) abuts on the surface 54d (surface facing outward in the axial direction) of the fitting portion 54. Has been.
  • oblique flanges 30 projecting to the outer peripheral side (radially outward) of the cylindrical portion 22 are respectively provided at both axial ends of the cylindrical portion 22.
  • the oblique flange 30 is formed at the upper part of the axial end portion of the upper plate 21, is connected to the upper plate 21 (wall portion of the cylindrical portion) at an obtuse angle, and gradually increases toward the outer side in the axial direction. It is inclined in a direction away from the central axis of the cylindrical portion 22.
  • the main body member 3 is assembled to the bracket 2 by being press-fitted from the outside in the axial direction of the bracket 2 to the inside of the bracket 2 (tubular portion 22). At this time, the main body member 3 is compressed and sandwiched between the lower surface of the rebound stopper portion 25 and the lower surfaces 26c and 26c (horizontal surfaces) of the fitting recesses 26 and 26, and the fitting recesses 26 on both sides. The side surfaces 26b and 26b (vertical surfaces) of the 26 are compressed and sandwiched in the width direction. Thereby, the compression force is applied to the leg portions 53 of the main body member 3.
  • the overall height molding dimension (vertical dimension from the lower surface 54 c of the fitting portion 54 to the upper surface of the rebound buffer portion 51) of the main body member 3 in the unloaded state before being assembled to the bracket 2 is the inner side of the cylindrical portion 22. It is set larger than the height dimension (the vertical dimension from the lower surface 26c of the fitting recess 26 to the lower surface of the rebound stopper portion 25). Further, the molding dimension of the full width of the main body member 3 in the no-load state (the horizontal dimension from the side surface 54b of one fitting portion 54 to the side surface 54b of the other fitting portion 54) is the fitting recesses 26, 26 on both sides.
  • the width dimension between them (the horizontal dimension from the side surface 26b of one fitting recess 26 to the side surface 26b of the other fitting recess 26) is set larger.
  • the main body member 3 is disposed inside the cylindrical portion 22 in a state where the elastic body 5 is contracted in the vertical direction and the width direction with a jig or the like (not shown). At this time, the leg portions 53 and 53 are compressed in the protruding direction, and the protruding length is shortened. Thereafter, by removing the jig, the elastic body 5 expands due to the elasticity of the elastic body 5, and the lower surfaces 54c, 54c of the fitting portions 54, 54 are pressed against the lower surfaces 26c, 26c of the fitting recesses 26, 26.
  • the upper surface of the rebound buffer 51 is pressed against the lower surface of the rebound stopper 25. Furthermore, the side surfaces 54 b and 54 b of the fitting portions 54 and 54 of the elastic body 5 are pressed against the side surfaces 26 b and 26 b of the fitting recesses 26 and 26. As a result, a compressive force is applied to the leg portions 53 and 53.
  • the bracket 2 is manufactured by welding the lower plate 20 and the upper plate 21. More specifically, the lower plate 20 and the upper plate 21 are separately formed by pressing. At this time, the oblique flange 30 is formed on the upper plate 21 by pressing, and the rib plate 28 is formed on the lower plate 20 by pressing. Subsequently, the upper plate 21 is disposed on the lower plate 20, the lower end of the upper plate 21 is welded to the upper surface of the lower plate 20, and both axial ends of the lower portion of the upper plate 21 are connected to the rib plates 28 of the lower plate 20. Weld to each. Thereby, the bracket 2 which has the cylindrical part 22 is manufactured.
  • the elastic body 5 is vulcanized and formed, and vulcanized and bonded to the mounting portion 4 to manufacture the main body member 3. More specifically, the mounting portion 4 is disposed at a predetermined position in a mold (elastic body mold) (not shown) for forming the elastic body 5, and an adhesive base treatment is applied to the outer peripheral surface of the mounting portion 4. Later, an adhesive is applied. Thereafter, the unvulcanized rubber is injected into the elastic body mold described above to form the elastic body 5. Subsequently, the elastic body 5 is vulcanized by applying sulfur gas, pressure and heat to the elastic body 5. At this time, the elastic body 5 is joined to the outer peripheral surface of the mounting portion 4. Subsequently, the main body member 3 is formed by removing the elastic body mold.
  • a mold elastic body mold
  • the main body member 3 is press-fitted inside the cylindrical portion 22 of the bracket 2 while being compressed in the width direction and the vertical direction by a compression jig (not shown).
  • a compression jig for example, a jig composed of a pair of sandwiching members can be used.
  • the main body member 3 is sandwiched between the pair of sandwiching members, and the pair of sandwiching members are tightened to compress the main body member 3 in the width direction and the vertical direction, respectively.
  • the main body member 3 together with the compression jig is arranged on the outer side in the axial direction of the cylindrical portion 22, and the main body member 3 inside the compression jig is pushed toward the inner side of the cylindrical portion 22 to be press-fitted into the cylindrical portion 22.
  • the upper portion of the elastic body 5 (rebound buffer portion 51) slides on the surface of the oblique flange 30 formed at the axial end of the cylindrical portion 22, and is caused by the reaction force from the surface of the oblique flange 30.
  • the main body member 3 is press-fitted inside the cylindrical portion 22 while the leg portions 53 of the elastic body 5 are compressed.
  • the main body member 3 is guided by the oblique flange 30, and the main body member 3 can be easily press-fitted inside the cylindrical portion 22.
  • the main body member 3 is transferred from the inside of the compression jig (not shown) to the inside of the cylindrical portion 22, the pair of leg portions 53, 53 of the elastic body 5 is restored by elastic force, and the leg portions 53, 53
  • Each fitting portion 54 is fitted inside the fitting recess 26, 26 of the cylindrical portion 22, and the rebound buffer portion 51 is in close contact with the rebound stopper portion 25.
  • the vibration isolator 1 is completed by the above manufacturing method.
  • the bracket 2 is attached to a vehicle body (not shown) and attached to the engine (not shown) via an engine bracket (not shown) to the attachment portion 4.
  • an engine load static load
  • the mounting portion 4 acts on the mounting portion 4, and the mounting portion 4 is displaced downward relative to the bracket 2.
  • the legs 53 and 53 are compressed and shortened, and the rebound buffer 51 is separated from the rebound stopper 25 and a predetermined gap is formed between the upper surface of the rebound buffer 51 and the lower surface of the rebound stopper 25. Is formed.
  • the fitting portion 54 is pressed against the fitting recess 26, and the side surface 54b and the lower surface 54c of the fitting portion 54 are not separated from the side surface 26b and the lower surface 26c of the fitting recess 26, The side surface 54b and the lower surface 54c of the fitting portion 54 are always in pressure contact with the side surface 26b and the lower surface 26c of the fitting recess 26.
  • an engine (not shown) may be displaced in the axial direction (vehicle left-right direction), and the mounting portion 4 may be displaced in the axial direction relative to the bracket 2.
  • the movement of the fitting portion 54 to the outside in the axial direction relative to the fitting recess 26 is restricted by the retaining portion 29. Thereby, it is prevented that the main body member 3 slips out from the inner side of the bracket 2 (tubular portion 22) to the outer side in the axial direction.
  • the oblique flange 30 serves as a guide, so the main body member 3 is press-fitted inside the cylindrical portion 22.
  • the main body member 3 can be easily assembled to the bracket 2.
  • the main body member 3 is compressed into the cylindrical portion 22 in a state compressed in the width direction and the vertical direction, when the main body member 3 is press-fitted into the cylindrical portion 22, the main body member 3 is cylindrical. It becomes difficult to be caught by the part 22, and the main body member 3 is smoothly press-fitted inside the cylindrical part 22. Thereby, the main body member 3 can be easily assembled to the bracket 2.
  • the leg portion 53 is always compressed even when a large displacement is repeatedly input to the rebound side. Since the leg 53 is creeped by heat from the engine (not shown), the root R becomes small and the root may become a starting point of the crack. It can suppress, and the performance fall and lifetime fall of the elastic body 5 can be suppressed.
  • the fitting portion 54 is always in pressure contact with the fitting recess 26, so that the gap between the fitting portion 54 and the fitting recess 26 is The frictional force is maintained, and the frictional force can prevent the main body member 3 from coming out of the bracket 2. Therefore, even when vertical vibration is input and the attachment portion 4 is displaced in the axial direction relative to the bracket 2, the main body member 3 becomes difficult to come out of the bracket 2. It is possible to prevent the bracket 2 from being separated.
  • the main body member 3 can be reliably prevented from coming out from the inner side of the bracket 2. .
  • the edge portion of the retaining portion 29 is in contact with the surface 54 d of the fitting portion 54 and the edge of the retaining portion 29 is not pressed against the surface 53 b of the leg portion 53, the edge portion of the retaining portion 29 is The surface 53b of 53 can be prevented from being scratched, and the performance and life of the elastic body 5 can be suppressed. Furthermore, a step 55 is formed between the surface 54d of the fitting portion 54 and the surface 53b of the leg portion 53. Even if the surface 54d of the fitting portion 54 is damaged by the edge of the retaining portion 29, Since the scratch does not easily propagate to the leg portion 53, it is possible to prevent the leg portion 53 from being cracked, and to suppress the performance reduction and the life reduction of the elastic body 5.
  • the bracket 2 is a single part, and the main body member 3 is assembled to the bracket 2 by press-fitting the main body member 3 inside the bracket 2.
  • the number can be reduced.
  • the bracket 2 can be reduced in weight and the vibration isolator 1 can be reduced in weight.
  • the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof.
  • the bound stopper portion 23 and the side stopper portions 24, 24 are formed on the bracket 2.
  • the bound stopper portion 23 and the side stopper portion 24 may be omitted. Is possible.
  • the elastic body 5 is provided with the bounce buffer 50, the rebound buffer 51, and the side buffer 52, 52 on both sides. It can be omitted.
  • a buffer part may be provided on the inner peripheral surface of the cylindrical part 22, and the mounting part 4 may be in direct contact with the buffer part.
  • the bracket 2 having the rectangular tube-shaped cylindrical portion 22 is provided, but the present invention may use a bracket having a cylindrical portion having another shape.
  • a bracket having a U-shaped cylindrical portion in a cylindrical shape or an arrow view from the axial direction may be used.
  • the bracket 2 is connected to the vehicle body (vibration receiving portion) and the mounting portion 4 is connected to the engine (vibration generating portion).
  • the bracket 2 is connected to the engine (vibration generating portion).
  • the attachment portion 4 may be connected to the vehicle body (vibration receiving portion). In this case, the vibration isolator 1 may be used upside down in FIG.
  • the elastic body 5 is provided with a pair of leg portions 53, 53 disposed symmetrically with respect to the vertical center line, and the pair of leg portions 53, 53 is the attachment portion 4.
  • the legs in the present invention are compressed when a static load is applied.
  • the orientation of the legs can be changed.
  • the leg part is arranged close to the upper part of the attachment part 4, for example, in a substantially V shape.
  • Legs may be provided.
  • the legs when increasing the rigidity in the vehicle front-rear direction, the legs can be arranged in a substantially X shape. In the present invention, one or three or more legs may be provided, and the plurality of legs 53 may not be arranged symmetrically.
  • the fitting recess 26 is disposed on the lower side of the mounting portion 4, the leg portions 53, 53 are disposed on the lower side of the mounting portion 4, and the shaft In the direction of the arrow from the direction, they are arranged so as to be separated from each other and compressed when a static load is applied.
  • the fitting concave portion 26 and the leg portion 53 are arranged in the vertical direction of the mounting portion 4. It does not need to be arranged on one side.
  • a pair of fitting recesses 126 are disposed in the cylindrical portion 122 at symmetrical positions, and the pair of leg portions 153 and 153 are provided so as to extend in directions opposite to each other.
  • the apparatus 101 may be used. In FIG.
  • reference numeral 102 indicates a bracket
  • reference numeral 103 indicates a main body member
  • reference numeral 104 indicates a mounting portion
  • reference numeral 105 indicates an elastic body
  • reference numeral 125 indicates a stopper portion
  • reference numeral 129 indicates a retaining portion
  • Reference numeral 154 indicates a fitting portion
  • reference numeral 155 indicates a step.
  • a vibration isolator 201 shown in FIG. 5 may be used as a further modification of the vibration isolator 101 shown in FIG.
  • the anti-vibration device 201 is different from the anti-vibration device 101 in that an oblique flange 130 is provided at the edge of the retaining portion 129.
  • the oblique flange 130 is provided so as to be inclined outward in the radial direction from the edge of the retaining portion 129 toward the outer side in the axial direction of the cylindrical portion 122.
  • the oblique flange 130 serves as a guide, so that the main body member 103 can be easily press-fitted inside the cylindrical portion 122, and the main body member 103 can be pressed. It can be easily assembled to the bracket 102.
  • the vibration isolator according to the present invention is not limited to a vehicle engine mount, but can be applied to a vibration isolator other than the engine mount.
  • the present invention can be applied to a mount of a generator mounted on a construction machine, or can be applied to a mount of a machine installed in a factory or the like.
  • the lower plate 20 and the upper plate 21 are integrally welded, the bracket 2 is made of a single part, and the main body member 3 is press-fitted inside the bracket 2 (tubular portion 22).
  • the bracket 2 is made of a single part
  • the main body member 3 is press-fitted inside the bracket 2 (tubular portion 22).
  • a bracket formed by joining two parts (the lower plate 20 and the upper plate 21) by caulking or the like may be used.
  • the main body member 3 is sandwiched between these two parts and these are caulked and fixed.
  • the main body member 3 can be assembled to the bracket 2.
  • the step 55 is formed between the surface 54d of the fitting portion 54 and the surface 53b of the leg portion 53.
  • the step 55 is not formed. It is also possible, and the surface 54d of the fitting portion 54 and the surface 53b of the leg portion 53 may be formed flush with each other.
  • the edge of the retaining portion 29 is in contact with the surface 54d of the fitting portion 54.
  • the edge of the retaining portion 29 contacts the surface 54d of the fitting portion 54.
  • the edge of the retaining portion 29 may protrude above the fitting portion 54.
  • the retaining portion 29 described above can be omitted.

Landscapes

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

Abstract

L'invention porte sur un dispositif d'isolation contre les vibrations (1), équipé de : un support (2) qui est fixé soit à une partie générant des vibrations soit à une partie recevant des vibrations ; et un élément de corps principal (3) comportant une fixation (4) qui est fixée à l'autre parmi la partie générant des vibrations et la partie recevant des vibrations, et un corps élastique (5) qui est relié à la fixation (4). Le corps élastique (5) est équipé de pattes extensibles (43) qui sont disposées sur un côté dans la direction verticale de la fixation (4) et qui font saillie vers le support (2), et de sections d'adaptation (54) qui sont disposées sur l'extrémité des pattes (53). Le support (2) est équipé de cavités d'adaptation (26), dans lesquelles sont adaptées les sections d'adaptation (54), lesquelles sont disposées sur un côté dans la direction verticale de la fixation (4), et d'un élément d'arrêt (25) qui est disposé sur l'autre côté dans la direction verticale de la fixation (4), et qui restreint le déplacement de la fixation (4) vers l'autre côté dans la direction verticale. L'élément de corps principal (3) est monté dans le support (2) dans un état pris en sandwich dans la direction verticale au moins par l'élément d'arrêt (25) et les cavités d'adaptation (26) et par l'application d'une force de compression aux pattes (53).
PCT/JP2011/057870 2010-03-31 2011-03-29 Dispositif d'isolation contre les vibrations WO2011125667A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2010082245A JP2011214634A (ja) 2010-03-31 2010-03-31 防振装置
JP2010-081074 2010-03-31
JP2010-081940 2010-03-31
JP2010081940A JP5681371B2 (ja) 2010-03-31 2010-03-31 防振装置
JP2010081074A JP2011214608A (ja) 2010-03-31 2010-03-31 防振装置
JP2010-082245 2010-03-31

Publications (1)

Publication Number Publication Date
WO2011125667A1 true WO2011125667A1 (fr) 2011-10-13

Family

ID=44762614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/057870 WO2011125667A1 (fr) 2010-03-31 2011-03-29 Dispositif d'isolation contre les vibrations

Country Status (1)

Country Link
WO (1) WO2011125667A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904955A (zh) * 2016-07-07 2016-08-31 安徽安凯汽车股份有限公司 一种发动机悬置软垫支架
CN111504238A (zh) * 2020-04-29 2020-08-07 河南柴油机重工有限责任公司 一种柴油机运行状态下隔振装置微幅位移测试方法及装置
EP4353986A1 (fr) * 2022-10-12 2024-04-17 Vibracoustic SE Support de moteur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001132795A (ja) * 1999-11-02 2001-05-18 Bridgestone Corp 防振装置及び防振装置の製造方法
JP2003269508A (ja) * 2002-03-14 2003-09-25 Nok Corp 防振支持装置
JP2009036295A (ja) * 2007-08-01 2009-02-19 Tokai Rubber Ind Ltd 防振装置の製造方法
JP2009115136A (ja) * 2007-11-02 2009-05-28 Bridgestone Corp 防振装置
JP2009293766A (ja) * 2008-06-09 2009-12-17 Bridgestone Corp 防振装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001132795A (ja) * 1999-11-02 2001-05-18 Bridgestone Corp 防振装置及び防振装置の製造方法
JP2003269508A (ja) * 2002-03-14 2003-09-25 Nok Corp 防振支持装置
JP2009036295A (ja) * 2007-08-01 2009-02-19 Tokai Rubber Ind Ltd 防振装置の製造方法
JP2009115136A (ja) * 2007-11-02 2009-05-28 Bridgestone Corp 防振装置
JP2009293766A (ja) * 2008-06-09 2009-12-17 Bridgestone Corp 防振装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904955A (zh) * 2016-07-07 2016-08-31 安徽安凯汽车股份有限公司 一种发动机悬置软垫支架
CN111504238A (zh) * 2020-04-29 2020-08-07 河南柴油机重工有限责任公司 一种柴油机运行状态下隔振装置微幅位移测试方法及装置
CN111504238B (zh) * 2020-04-29 2021-12-03 河南柴油机重工有限责任公司 一种柴油机运行状态下隔振装置微幅位移测试方法及装置
EP4353986A1 (fr) * 2022-10-12 2024-04-17 Vibracoustic SE Support de moteur

Similar Documents

Publication Publication Date Title
KR101492872B1 (ko) 방진 장치
JP2004003597A (ja) 防振支持装置
JP5681371B2 (ja) 防振装置
US11135891B2 (en) Stabilizer bushing
JP2011214634A (ja) 防振装置
JP2005226745A (ja) エンジンマウント
JP2011214608A (ja) 防振装置
WO2011125667A1 (fr) Dispositif d'isolation contre les vibrations
JP2014173692A (ja) 防振装置
JP6783162B2 (ja) ブラケット付き防振装置
JP2009115136A (ja) 防振装置
JP3893977B2 (ja) 防振装置
JP3627406B2 (ja) 筒形防振支持体
JP2001132795A (ja) 防振装置及び防振装置の製造方法
JP2018071602A (ja) アッパサポート用の下クッションゴム
JP4757133B2 (ja) トルクロッド
JP2008094248A (ja) トルクロッド
JP2009047207A (ja) 防振装置
JP4235017B2 (ja) 防振ゴム及び防振装置
JP2013068288A (ja) 金具付エキゾーストマウント
JP2007078159A (ja) ダイナミックダンパ
WO2012132105A1 (fr) Dispositif de prévention des vibrations
JP2013242001A (ja) エンジンマウント
JP2016080142A (ja) 防振装置
JP5277101B2 (ja) 防振装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11765567

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1201005192

Country of ref document: TH

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11765567

Country of ref document: EP

Kind code of ref document: A1