WO2016136916A1 - 防振装置用ブラケットとブラケット付防振装置、防振装置用ブラケットの製造方法 - Google Patents
防振装置用ブラケットとブラケット付防振装置、防振装置用ブラケットの製造方法 Download PDFInfo
- Publication number
- WO2016136916A1 WO2016136916A1 PCT/JP2016/055725 JP2016055725W WO2016136916A1 WO 2016136916 A1 WO2016136916 A1 WO 2016136916A1 JP 2016055725 W JP2016055725 W JP 2016055725W WO 2016136916 A1 WO2016136916 A1 WO 2016136916A1
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- Prior art keywords
- bracket
- vibration
- stopper
- cylindrical portion
- mounting member
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
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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
- F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Definitions
- the present invention relates to an anti-vibration device bracket and an anti-vibration device with a bracket, which are applied to an engine mount of an automobile, and further relates to a method of manufacturing the anti-vibration device bracket.
- the vibration damping performance of a rubber elastic body is used as a type of vibration-proofing coupling body or vibration-proofing support body that is interposed between members constituting a vibration transmission system and that mutually vibration-proofly connects these members.
- Anti-vibration devices are known and applied to automobile engine mounts and the like.
- This vibration isolator is equipped with a vibration isolator bracket that is attached to a vibration transmission system component, for example, on the vibration isolator main body in which the first mounting member and the second mounting member are elastically connected by the main rubber elastic body.
- the anti-vibration device with brackets for example, those described in Japanese Patent Application Laid-Open No. 2011-256958 (Patent Document 1).
- the bracket for vibration isolator described in Patent Document 1 includes a bound stopper portion that constitutes stopper means and a vibration transmission system with respect to a cup member that is externally fitted to the second mounting member of the vibration isolator body.
- Each of the stays fixed to the component members is fixed to the cup member by means of welding or the like.
- the fixing position may be shifted, and the quality such as load resistance may be varied.
- the present invention has been made in the background of the above-mentioned circumstances, and its solution is to provide a bracket for a vibration isolator having a novel structure that can realize stable quality with a small number of parts. It is in.
- Another object of the present invention is to provide a vibration isolator with a bracket having a novel structure using the vibration isolator bracket as described above, and a method for manufacturing the vibration isolator bracket according to the present invention.
- the first mounting member and the second mounting member are mounted on the vibration isolator body elastically connected by the main rubber elastic body and are externally fitted to the second mounting member.
- a vibration isolator bracket that includes a cylindrical portion and is attached to a vibration transmission system component to interconnect the second mounting member and the vibration transmission system.
- a stopper portion that abuts against one mounting member side and limits the relative displacement of the first mounting member and the second mounting member; and a fixed piece that is fixed to a component of the vibration transmission system At least one is characterized in that it is integrally formed so as to spread toward the outer peripheral side in any one of the openings of the cylindrical portion.
- At least one of the stopper portion and the fixing piece is integrally formed with the cylindrical portion, thereby reducing the number of parts and simplifying the structure associated therewith. Is achieved. Moreover, since the stopper part and fixed piece integrally formed with the cylindrical part are provided with high accuracy at a predetermined position of the cylindrical part, stabilization of quality is also realized.
- both the stopper part where the stopper load acts and the fixed piece where the support load and vibration load act are required to have sufficient load-bearing performance.
- the error of the load bearing performance due to the above can be reduced or avoided, and the target performance can be stably obtained.
- the stopper portion and the fixed piece integrally formed with the cylindrical portion are provided so as to spread from the opening portion of the cylindrical portion to the outer peripheral side, the cylindrical portion is mutually reinforced and has excellent deformation rigidity (resistance to resistance). Loadability) is realized.
- the stopper portion integrally formed with the tubular portion and the reinforcing action for the fixed piece can be advantageously obtained by the tubular portion bent in the circumferential direction.
- both the stopper portion and the fixed piece are integrally formed in one of the opening portions of the cylindrical portion. It is what.
- the stopper portion and the fixed piece integrally with the cylindrical portion, the number of parts can be reduced and the structure can be simplified. Further, since the stopper portion and the fixed piece are integrally formed in the opening on the same side of the cylindrical portion, it is easy to form the stopper portion and the fixed piece simultaneously by press working or the like.
- the stopper portion is integrally formed in one of the openings of the tubular portion, Reinforcing ribs projecting inward in the axial direction of the cylindrical portion are provided at the outer peripheral end of the stopper portion.
- the reinforcing rib is provided in the stopper portion integrally formed with the cylindrical portion, whereby the deformation rigidity of the stopper portion is increased, and the load resistance against the stopper load is improved. Further, since the outer peripheral portion of the stopper portion is reinforced by the reinforcing rib, the deformation rigidity of the stopper portion is more advantageous due to the reinforcing effect of the inner peripheral portion by the cylindrical portion and the reinforcing effect of the outer peripheral portion by the reinforcing rib. It can be improved.
- the reinforcing rib is provided so as to protrude inward in the axial direction, a flat stopper contact surface can be secured on the axial outer surface of the stopper portion, and the area of the stopper contact surface is reduced by the formation of the reinforcing rib. It is also avoided that it becomes smaller.
- the stopper portion is integrally formed in any one of the opening portions of the cylindrical portion.
- the stopper portion is integrally provided with a reinforcing portion that protrudes from the opening of the cylindrical portion toward the inner peripheral side and an abutting portion that extends from the inner peripheral end of the reinforcing portion to the outer peripheral side. is there.
- the contact portion constituting the stopper contact surface is formed by being folded back from the inner peripheral end of the reinforcing portion that protrudes toward the inner peripheral side at the opening of the cylindrical portion.
- the contact portion can be formed large in the radial direction without greatly projecting to the outer periphery, and the area of the stopper contact surface can be efficiently ensured. As a result, the stopper load acts on a wider stopper contact surface, so that a larger stopper load can be received.
- the connecting portion between the cylindrical portion and the stopper portion has a structure in which a reinforcing portion extending to the inner peripheral side and an abutting portion folded back from the inner peripheral end of the reinforcing portion to the outer peripheral side are overlapped with each other.
- the deformation rigidity of the connecting portion is increased, and the load resistance performance against an input such as a stopper load can be improved.
- the reinforcing action as described above is exhibited by making the inner peripheral part of the stopper part a folded structure without using a separate reinforcing member, the number of parts is increased and the structure is complicated and manufactured accordingly. An increase in the number of processes is also avoided.
- the fixing piece is integrally formed in any one of the cylindrical portions.
- the fixing piece is provided with a reinforcing rib protruding in the axial direction of the cylindrical portion.
- the deformation rigidity of the fixed piece is increased, and the static shared support load or the vibration load is input.
- the load bearing performance is improved.
- the fixing piece is integrally formed in any one of the cylindrical portions.
- the fixing piece is integrally provided with a reinforcing portion that protrudes from the opening of the cylindrical portion toward the inner peripheral side and a fixing portion that is folded back from the inner peripheral end of the reinforcing portion toward the outer peripheral side. .
- the connecting portion between the cylindrical portion and the fixing piece overlaps the reinforcing portion extending to the inner peripheral side and the contact portion folded back from the inner peripheral end of the reinforcing portion to the outer peripheral side.
- one end of a pair of mounting leg portions extending in parallel is connected to each other by a beam portion.
- the other end of the pair of mounting legs of the gate-shaped member is provided with a mounting part that is attached to a component of the vibration transmission system, and the pair of mounting legs are It is fixed to the cylindrical part, and the pair of mounting legs are removed in the circumferential direction, and at least one of the stopper part and the fixed piece is integrally formed with the cylindrical part.
- the cylindrical portion is attached to the vibration transmission system component at least at two locations on the circumference by the portal member, the cylindrical portion is stable with respect to the vibration transmission system component. Connected. Further, by providing a stopper portion and a fixing piece at a circumferential position away from the pair of mounting leg portions of the gate-shaped member, it is possible to avoid the interference between the stopper portion or the fixing piece and the pair of mounting leg portions, and to achieve the target stopper. The effect and the fixing to the components of the vibration transmission system are effectively realized.
- At least one circumferential end of the stopper portion and the fixed piece is abutted against the pair of mounting legs. Are fixed.
- At least one of the stopper portion and the fixing piece is reinforced by the pair of mounting legs that are made to be highly rigid for mounting to the constituent members of the vibration transmission system, and has excellent load bearing performance. Is realized. In addition, an increase in the number of parts can be avoided by using the mounting legs, which are mounting members for the components of the vibration transmission system, as the reinforcing members.
- a vibration isolator with a bracket wherein the vibration isolator main body having a structure in which the first mounting member and the second mounting member are elastically connected by a main rubber elastic body. It is inserted in the said cylindrical part of the bracket for vibration isolator described in any one aspect of 8, and this cylindrical part is characterized by being externally fitted by this 2nd attachment member.
- the stopper portion for limiting the relative displacement between the first mounting member and the second mounting member, and the second mounting member Since at least one of the fixed piece for mounting on the vibration transmission system component is integrally formed with the cylindrical portion that is externally fitted to the second mounting member, the stopper means and the vibration transmission system component
- the mounting means can be configured with a small number of parts.
- the stopper part and the fixed piece are integrally provided on the cylindrical part, variations in deformation rigidity and shape of the vibration isolator bracket can be reduced or avoided, and the anti-vibration apparatus with bracket can be stably manufactured. Can be provided.
- a tenth aspect of the present invention is a method for manufacturing a vibration isolator bracket according to any one of the first to eighth aspects, wherein the primary metal fittings prepared in advance are subjected to press working and continuously.
- the method includes the step of forming the cylindrical portion having a peripheral wall and integrally forming at least one of the stopper portion and the fixing piece in one of the openings of the cylindrical portion.
- the primary metal fitting is pressed to integrally form the stopper portion, the fixed piece, and the cylindrical portion, thereby forming a cylindrical shape.
- the process of post-fixing the stopper part and the fixing piece to the part by means such as welding is unnecessary or simplified, and can be manufactured easily.
- At least one of the stopper portion constituting the stopper means and the fixed piece fixed to the component member of the vibration transmission system is integrally formed in one of the opening portions of the cylindrical portion, and the outer peripheral side. Has spread to. Therefore, the structure and manufacturing process can be simplified by reducing the number of parts, and the stopper part and the fixing piece can be accurately arranged at a predetermined position of the cylindrical part by integrating the cylindrical part. The load-bearing performance can be improved by integrating the stopper portion and the fixed piece.
- the perspective view which shows the engine mount as 1st embodiment of this invention The top view of the engine mount shown in FIG. The front view of the engine mount shown in FIG. The right view of the engine mount shown in FIG. VV sectional view of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 2.
- the perspective view of the mount main body which comprises the engine mount shown in FIG. FIG. 8 is a longitudinal sectional view of the mount main body shown in FIG. 7, corresponding to the VV cross section of FIG. 2.
- the perspective view of the outer bracket which comprises the engine mount shown in FIG. FIG. 11 is a plan view of the outer bracket shown in FIG. 10.
- FIG. 11 is a front view of the outer bracket shown in FIG. 10.
- FIG. 11 is a right side view of the outer bracket shown in FIG. 10.
- FIG. 11 is a bottom view of the outer bracket shown in FIG. 10.
- FIGS. 1 to 6 show an engine mount 10 for an automobile as a first embodiment of the vibration isolator with bracket according to the present invention.
- the engine mount 10 has a structure in which an outer bracket 14 as a vibration isolator bracket is attached to a mount main body 12 as a vibration isolator main body.
- the mount main body 12 is shown in FIGS.
- the first mounting member 16 and the second mounting member 18 are elastically connected by the main rubber elastic body 20.
- the first attachment member 16 is attached to a power unit (not shown) via an inner bracket 22 and the second attachment member 18 is attached to a vehicle body (not shown) which is a constituent member of a vibration transmission system via an outer bracket 14. It is supposed to be.
- the vertical direction is the vertical direction in FIG. 3 that is the mount axis direction
- the front-rear direction is the horizontal direction in FIG. 3 that is the vehicle front-rear direction when mounted on the vehicle.
- the left-right direction means the left-right direction in FIG. 4 which is the left-right direction of the vehicle when mounted on the vehicle.
- the first mounting member 16 is a high-rigidity member formed of a metal such as iron or aluminum alloy, or a fiber-reinforced synthetic resin. In this embodiment, as shown in FIGS. And a substantially cup-shaped fixing portion 26 protruding downward from the fitting portion 24 is integrally formed.
- the second mounting member 18 is a highly rigid member like the first mounting member 16 and has a thin cylindrical shape with a large diameter. Furthermore, the second mounting member 18 of the present embodiment has a stepped cylindrical shape, and the upper portion of the second mounting member 18 is a press-fit cylindrical portion 28 having a larger diameter than the lower portion.
- the first mounting member 16 is disposed in the upper opening of the second mounting member 18, and the first mounting member 16 and the second mounting member 18 are elastically connected by the main rubber elastic body 20.
- the main rubber elastic body 20 has a thick-walled large-diameter substantially truncated cone shape, the end on the small-diameter side is vulcanized and bonded to the first mounting member 16, and the outer periphery of the end on the large-diameter side The surface is vulcanized and bonded to the inner peripheral surface of the second mounting member 18.
- the main rubber elastic body 20 is formed with a large-diameter recess 30 that opens to the large-diameter side end face.
- the large-diameter recess 30 has a reverse mortar shape that decreases in diameter as it goes upward, and opens downward on the inner peripheral side of the second mounting member 18.
- the fixing portion 26 of the first mounting member 16 fixed to the central portion of the main rubber elastic body 20 is embedded in the main rubber elastic body 20 without reaching the large-diameter recess 30.
- the fitting portion 24 of the first mounting member 16 is covered with a fitting rubber layer 32 whose inner peripheral surface is integrally formed with the main rubber elastic body 20 and whose outer peripheral surface is the main rubber elastic body 20.
- the cover rubber layer 34 is integrally formed.
- an upper cushioning rubber 36 that protrudes upward is fixed to the upper surface of the fitting portion 24 of the first mounting member 16, and a lateral side that protrudes rightward on the upper side portion of the fitting portion 24.
- the buffer rubber 38 is fixed.
- a front shock absorbing rubber 40 protruding forward is fixed to the front surface of the fitting portion 24, and a rear shock absorbing rubber 42 protruding backward is fixed to the rear surface of the fitting portion 24.
- the upper buffer rubber 36, the side buffer rubber 38, and the front and rear buffer rubbers 40 and 42 are all formed integrally with the covering rubber layer 34.
- the main rubber elastic body 20 is integrally provided with the fitting rubber layer 32, the covering rubber layer 34, and the buffer rubbers 36, 38, 40, and 42.
- the inner bracket 22 and the outer bracket 14 are attached to the mount body 12 having such a structure.
- the inner bracket 22 is a high-rigidity member made of metal or the like. As shown in FIG. 9, the inner bracket 22 is provided with a substantially rectangular rod-shaped fitting portion 44 and at one end of the fitting portion 44. An extending fastening portion 46 is integrally provided. Further, bolt holes 48 penetrating vertically are respectively formed at both front and rear end portions of the fastening portion 46.
- the inner bracket 22 is attached to the first attachment member 16 by fastening the fitting portion 44 into the fitting portion 24 of the first attachment member 16 via the fitting rubber layer 32, and is fastened. The part 46 protrudes to the left of the first mounting member 16 and is held.
- the outer bracket 14 has a structure in which a mounting member 50 and a gate-shaped member 52 formed separately from each other are fixed to each other by means such as welding.
- the mounting member 50 according to the present embodiment includes a cylindrical portion 54 having a large-diameter substantially cylindrical shape, and both the stopper portion 56 and the fixed piece 58 are provided on the upper opening of the cylindrical portion 54, respectively. It spreads to the side and is integrally formed.
- the cylindrical portion 54 has a circumferential wall continuous in the circumferential direction and extends vertically with a substantially constant cross-sectional shape.
- the inner diameter dimension is slightly smaller than the outer diameter dimension of the press-fit cylindrical portion 28 of the second mounting member 18. It has a small diameter.
- the stopper portion 56 has a flange shape that spreads from the upper opening portion of the cylindrical portion 54 to the outer peripheral side as a whole, and is integrally formed with the upper opening portion of the cylindrical portion 54 so as to cover a little less than a half circumference of the cylindrical portion 54. And provided continuously in the circumferential direction. Further, the stopper portion 56 integrally includes a reinforcing portion 60 that protrudes from the upper opening of the tubular portion 54 to the inner peripheral side, and a contact portion 62 that is folded back from the inner peripheral end of the reinforcing portion 60 and extends to the outer peripheral side. The reinforcing portion 60 and the abutting portion 62 are vertically overlapped at the inner peripheral portion.
- an outer peripheral reinforcing plate portion 64 as a reinforcing rib is provided at the outer peripheral end portion of the contact portion 62 in the stopper portion 56.
- the outer peripheral reinforcing plate 64 protrudes downward from the outer peripheral edge of the abutting portion 62, which is inward in the axial direction of the cylindrical portion 54.
- the outer peripheral reinforcing plate 64 of the present embodiment is the abutting portion.
- the outer peripheral portion of 62 is bent downward to be formed integrally with the contact portion 62.
- the outer peripheral reinforcing plate portion 64 is formed over the entire length in the circumferential direction of the abutting portion 62, and is continuously provided with a length of a little less than a half circumference in the circumferential direction facing the outer peripheral surface of the cylindrical portion 54. It has been.
- the fixed piece 58 has a substantially longitudinal plate shape as a whole, is integrally formed in the upper opening of the cylindrical portion 54, and is provided to project to the outer peripheral side in the radial direction of the cylindrical portion 54. More specifically, the fixed piece 58 is provided in the shape of a flange whose proximal end portion located on the inner peripheral side extends in the circumferential direction with a length of a little less than a half with respect to the upper opening of the tubular portion 54. At the same time, the distal end portion located on the outer peripheral side extends radially outward from the circumferential central portion of the proximal end portion.
- the distal end portion of the fixed piece 58 is inclined with respect to the direction perpendicular to the axis of the cylindrical portion 54 and is inclined upward as it goes to the outer peripheral side, and a bolt hole 66 penetrating in the thickness direction is formed. Yes.
- the stopper portion 56 and the fixing piece 58 are disposed substantially opposite to each other in the radial direction, and the stopper portion 56 and the fixing piece 58 are provided at different portions on the circumference of the cylindrical portion 54.
- the fixing piece 58 integrally includes a reinforcing portion 60 that protrudes from the upper opening of the cylindrical portion 54 to the inner peripheral side, and a fixing portion 68 that is folded back from the inner peripheral end of the reinforcing portion 60 and extends to the outer peripheral side.
- the reinforcing portion 60 and the fixing portion 68 are overlapped with each other in the inner peripheral portion.
- the reinforcing portion 60 that protrudes from the upper opening of the cylindrical portion 54 to the inner peripheral side is provided over the entire circumference.
- the upper part constitutes the stopper portion 56 and the other part on the circumference constitutes the fixed piece 58.
- a portion of the reinforcing portion 60 that is folded back from the inner peripheral side to the outer peripheral side is also provided over the entire circumference, and a part of the circumference is a contact part 62 of the stopper part 56, and other parts on the circumference are also provided.
- the folded portion 70 between the abutting portion 62 and the fixing portion 68 in the circumferential direction is such that the outer peripheral end surface is substantially in the radial direction with the outer peripheral surface of the cylindrical portion 54.
- the extending length to the outer peripheral side is made smaller than that of the contact part 62 and the fixed part 68, whereby the notch 72 opened to the outer peripheral side is formed in the circumferential direction of the contact part 62 and the fixed part 68. They are respectively formed between the end portions on both sides (folded portion 70) (see FIG. 17).
- the fixed piece 58 is provided with a pair of edge bent portions 74 and 74 as reinforcing ribs.
- the edge bent portion 74 protrudes upward from the fixed piece 58 in the axial direction outward of the cylindrical portion 54, and extends from the outer peripheral end portion of the base end portion of the fixed piece 58 to the outer end portion in the width direction of the distal end portion. It is provided continuously.
- the outer edge portion of the fixed piece 58 is bent upward so that the reinforcing rib (edge bent portion 74) is integrally formed with the fixed piece 58.
- the mounting member 50 constituting the outer bracket 14 is manufactured as follows, for example. First, a primary metal fitting is prepared. As the primary fitting, a pipe fitting formed by extrusion or drawing, a plate fitting punched into a predetermined shape, or the like is preferably used.
- the prepared primary metal fitting is processed into a predetermined shape by press processing such as progressive press. That is, when the primary metal fitting is a pipe metal fitting, one axial end portion (upper end portion) is bent to the inner peripheral side to form the reinforcing portion 60, and is turned back to the outer peripheral side to be brought into contact with the contact portion 62 and the fixing portion 68. And the folded portion 70 are integrally formed. Further, the outer peripheral end portion of the contact portion 62 is bent inward in the axial direction to form the outer peripheral reinforcing plate portion 64, and the end edge portion of the fixing portion 68 is bent outward in the axial direction to form the edge bent portion 74.
- the cylindrical part 54 provided with the wall part which continues in the circumferential direction, and the stopper part 56 and the fixing piece 58 integrally formed at one axial end part of the cylindrical part 54 are formed.
- the manufacturing process of the mounting member 50 is completed.
- returning part 70 may be stamped and formed in the above-mentioned press work, and may be previously formed in the corresponding
- the cylindrical portion 54 is formed by deep drawing, and the stopper portion 56 and the fixing piece 58 are formed at one end in the axial direction of the cylindrical portion 54 by progressive pressing. To do.
- the mounting member 50 in which the cylindrical portion 54, the stopper portion 56, and the fixing piece 58 are integrally formed can be manufactured.
- the mounting member 50 of the present embodiment has a structure in which the stopper portion 56 and the fixing piece 58 are integrally formed with the cylindrical portion 54, and therefore, means such as welding a separate stopper portion or fixing piece. Compared with the case of post-fixing to a cylindrical part, it can manufacture with few processes.
- the stopper portion 56 and the fixing piece 58 are provided integrally with the cylindrical portion 54, variations in the mounting strength of the stopper portion 56 and the fixing piece 58 with respect to the cylindrical portion 54 can be reduced or avoided, and stable durability can be prevented. Load performance and the like can be realized.
- the relative positions of the stopper portion 56 and the fixing piece 58 with respect to the cylindrical portion 54 can be set with high accuracy and stability by the integral formation.
- the step of forming the gate-shaped member 52 which will be described later, separately from the mounting member 50 by, for example, pressing a previously prepared plate fitting, and the mounting member 50 and the gate-shaped member 52,
- the outer bracket 14 as the vibration isolator bracket can be manufactured.
- the gate-shaped member 52 is a high-rigidity member like the mounting member 50, and has a pair of mounting legs 76, 76 arranged in parallel facing each other in the front-rear direction, and the mounting legs 76, 76. And a connecting portion 78 as a beam portion that connects the upper ends of the two together.
- the mounting leg portion 76 has a longitudinal plate shape extending vertically, and a curved fixing portion 80 that is curved along the outer peripheral surface of the cylindrical portion 54 is provided at the lower portion.
- a welding window portion 82 penetrating in the thickness direction is formed.
- a pair of mounting leg portions 76 and 76 are arranged opposite to each other in the front-rear direction, and a mounting portion 84 that protrudes outward in the opposing direction is integrally formed at the lower end of the pair of mounting leg portions 76 and 76.
- a bolt hole 86 penetrating vertically is formed in the attachment portion 84.
- the upper ends of the pair of mounting legs 76, 76 arranged to face each other in the front-rear direction are connected to each other by a connecting portion 78.
- the connecting portion 78 is formed in a longitudinal plate shape that spreads substantially horizontally and extends in the front-rear direction.
- the pair of mounting legs 76 and 76 and the connecting portion 78 are integrally formed by a pressed product of plate material. ing.
- ribs 88 projecting outward are integrally formed at the left and right ends of the gate-shaped member 52 of the present embodiment, and a pair of mounting legs 76 and 76 and mounting portions 84 and 84 having a plate shape are formed.
- the connecting portion 78 is enhanced in deformation rigidity by the ribs 88 and 88.
- the rib 88 is formed by bending the left and right end portions of the pair of attachment legs 76 and 76 forward and rearward and outwardly and bending the left and right end portions of the front and rear attachment portions 84 and 84 and the connecting portion 78 upward.
- the gate member 52 is provided continuously over the entire length of the front and rear.
- the portal member 52 is attached to the mounting member 50. That is, as shown in FIGS. 14 and 15, the gate-shaped member 52 is bent and fixed by inserting a pair of mounting legs 76 and 76 into one of the front and rear cutouts 72 and 72 provided on the mounting member 50. The inner peripheral surface of the portion 80 is overlapped with the outer peripheral surface of the cylindrical portion 54. The pair of mounting legs 76 and 76 are welded to the mounting member 50, whereby the portal member 52 is fixed to the mounting member 50.
- the stopper portion 56 and the fixed piece 58 protrude on both sides substantially orthogonal to the opposing direction of the pair of mounting leg portions 76, 76, respectively, and the pair of mounting leg portions 76, 76 extend in the circumferential direction of the tubular portion 54.
- both end surfaces in the circumferential direction of the stopper portion 56 and the outer peripheral reinforcing plate portion 64 are abutted and welded to the pair of mounting legs 76, 76 in the circumferential direction, and the peripheral portions of the fixed piece 58 and the edge bent portion 74 are also welded. Both end surfaces in the direction are abutted and welded to the pair of mounting legs 76 and 76 in the circumferential direction, and the mounting member 50 and the gate-shaped member 52 are firmly fixed to each other.
- the outer bracket 14 having such a structure is attached to the mount body 12. That is, the mount main body 12 is inserted into the cylindrical portion 54 of the outer bracket 14 from below, and the press-fit cylindrical portion 28 of the second mounting member 18 in the mount main body 12 is pressed into the cylindrical portion 54 from below. The cylindrical portion 54 is fitted and fixed to the second attachment member 18 so that the outer bracket 14 is attached to the mount body 12.
- the first mounting member 16 is sized so that it can pass through the inner peripheral side of the reinforcing portion 60 of the outer bracket 14 in the axial direction, and the mount body 12 is inserted into the outer bracket 14 from below and attached. Later, the inner bracket 22 is inserted and attached to the fitting portion 24 of the first mounting member 16 from the left side.
- the mount main body 12 can be press-fitted and fixed to the cylindrical portion 54 from above, and in this case, it is limited by the inner diameter of the reinforcing portion 60.
- the size of the first mounting member 16 can be set without any change.
- the engine mount 10 having the inner bracket 22 and the outer bracket 14 mounted on the mount body 12 as described above is mounted between a power unit (not shown) constituting the vibration transmission system and the vehicle body. That is, the inner bracket 22 mounted on the first mounting member 16 is fixed to the power unit by a bolt (not shown) inserted through the bolt hole 48 of the fastening portion 46, while being mounted on the second mounting member 18.
- the outer bracket 14 is fixed to the vehicle body by bolts (not shown) inserted through the bolt holes 86, 86 of the mounting portions 84, 84 of the portal member 52 and the bolt holes 66 of the fixing piece 58.
- the power unit is connected to the vehicle body in an anti-vibration manner via the engine mount 10, and the vibration transmitted from the power unit to the vehicle body is based on the energy damping action during the elastic deformation of the main rubber elastic body 20. It has been reduced.
- the outer bracket 14 is attached to the vehicle body not only at the fixing piece 58 of the mounting member 50 but also at the mounting portions 84 and 84 of the portal member 52.
- the outer bracket 14 is firmly attached to the vehicle body by the bolt fastening.
- the front and rear mounting portions 84 and 84 are provided in one component (the gate-shaped member 52), the number of components can be reduced and the welding process associated therewith can be simplified.
- the connecting portion 78 of the gate-shaped member 52 is provided across the top of the first mounting member 16 so that the first mounting member 16 is fitted.
- a rebound stopper that limits the vertical displacement of the first mounting member 16 and the second mounting member 18 by abutting the upper surface of the portion 24 and the lower surface of the connecting portion 78 via the upper shock absorbing rubber 36.
- the first mounting member 16 is in contact with the connecting portion 78 via the upper cushioning rubber 36, but the first mounting member is attached to the vehicle by mounting on the vehicle.
- a static shared support load of the power unit is input between the first mounting member 18 and the second mounting member 18, and the first mounting member 16 approaches the second mounting member 18 in the axial direction (relative displacement downward). Therefore, a predetermined stopper clearance is set between the facing surfaces of the connecting portion 78 and the upper cushioning rubber 36 in the vehicle mounting state.
- the pair of mounting legs 76, 76 of the gate-shaped member 52 are disposed opposite to the front and rear sides of the first mounting member 16, so that the fitting portion 24 of the first mounting member 16 and the pair of mounting legs are disposed.
- the front and rear stoppers that limit the amount of relative displacement between the first mounting member 16 and the second mounting member 18 in the front-rear direction are configured by contacting the front and rear buffer rubbers 40 and 42 with the front and rear buffer rubbers 40 and 42.
- the portal member 52 is provided on the outer bracket 14 to form a three-way stopper.
- the stopper part 56 integrally formed in the upper opening part of the cylindrical part 54 is arrange
- the inner bracket 22 abut on each other to form a bound stopper as a stopper means for limiting the relative approach displacement amount in the vertical direction of the first mounting member 16 and the second mounting member 18.
- a plate-like cushioning rubber protruding leftward from the fitting portion 24 of the first mounting member 16 is provided integrally with the main rubber elastic body 20 so that the inner bracket 22 and the stopper portion 56 are vertically moved.
- a buffer rubber may be interposed between the opposing surfaces.
- the mounting member 50 of the outer bracket 14 has a structure in which the stopper portion 56 and the fixing piece 58 are integrally provided on the cylindrical portion 54.
- the stopper portion 56 and the fixing piece 58 are formed separately from the cylindrical portion 54 and then fixed later, the number of parts is reduced and the time and effort of post-fixing by welding or the like can be saved.
- the stopper portion 56 to which the stopper load is input and the fixed piece 58 to which the vibration load is input are integrated with the cylindrical portion 54, cracks due to stress concentration on the welded portion are avoided. Thus, excellent load resistance is realized.
- the cylindrical portion 54 has a cylindrical shape and is curved and extends in the circumferential direction, the deformation rigidity of the stopper portion 56 and the fixing piece 58 that spread from the upper opening to the outer periphery of the cylindrical portion 54 is reduced. 54 is more advantageously enhanced.
- the mounting member 50 in which both the stopper portion 56 and the fixed piece 58 are integrally formed with the cylindrical portion 54 is provided. It can be easily obtained by press working or the like.
- the stopper portion 56 and the fixing piece 58 integrally formed with the cylindrical portion 54 include a reinforcing portion 60 in which inner end portions connected to the cylindrical portion 54 protrude toward the inner peripheral side. It has a structure that is folded back from the inner peripheral end and extends to the outer peripheral side. Therefore, the stopper portion 56 and the connecting portion between the fixed piece 58 and the cylindrical portion 54 where stress is easily concentrated when a load is input are reinforced, and deformation rigidity is improved.
- the reinforcing portion 60 is provided continuously over the entire circumference, and the contact portion 62 of the folded back stopper portion 56 and the fixed portion 68 of the fixing piece 58 are also turned back portions 70 and 70. Are connected to each other in the circumferential direction and are continuous in the circumferential direction. By these, the reinforcement action by the folding structure provided with the reinforcement part 60 is exhibited more effectively, and the load resistance of the stopper part 56 and the fixed piece 58 is further improved.
- the contact portion 62 constituting the contact surface of the bound stopper is formed by folding back from the inner peripheral end of the reinforcing portion 60 protruding to the inner peripheral side to the outer periphery, the structure is compact in the radial direction. Even so, it is possible to obtain a large area of the contact surface of the bound stopper.
- the stopper portion 56 is integrally formed with an outer peripheral reinforcing plate portion 64 that extends downward from the outer peripheral end portion of the abutting portion 62, and the inner peripheral end portion of the abutting portion 62 is reinforced with the cylindrical portion 54. While being reinforced by the portion 60, the outer peripheral end portion is reinforced by the outer peripheral reinforcing plate portion 64. Thereby, the deformation rigidity of the contact portion 62 to which the stopper load is input is further increased, and the load resistance against the input of the stopper load is further improved.
- the cylindrical portion 54 and the outer peripheral reinforcing plate portion 64 are curved and extend in the circumferential direction, the reinforcing effect of the stopper portion 56 by the outer peripheral reinforcing plate portion 64 is exhibited more advantageously, and the stopper portion 56 is excellent. Load-bearing performance is realized.
- both end portions in the circumferential direction of the contact portion 62 and the outer peripheral reinforcing plate portion 64 are abutted and fixed in the circumferential direction to one of the pair of mounting leg portions 76 and 76.
- the contact part 62 and the outer periphery reinforcement board part 64 are reinforced by a pair of attachment leg parts 76 and 76, and deformation rigidity is improved, and sufficient load-proof performance is received also with respect to the input of a big stopper load. Obtainable.
- an edge bending portion 74 protruding upward is integrally formed on the outer edge of the fixing portion 68 of the fixing piece 58, and the deformation rigidity of the fixing portion 68 is enhanced by the edge bending portion 74.
- the reinforcing effect of the edge bending portion 74 that is continuous in the longitudinal direction acts advantageously on the deformation in the thickness direction, which tends to cause a problem in the fixing portion 68 of the longitudinal plate protruding outward in the radial direction. Can be effectively prevented or avoided.
- both end portions in the circumferential direction of the base end portion of the fixing portion 68 are abutted and fixed in the circumferential direction to one of the pair of mounting leg portions 76 and 76.
- fixed part 68 is reinforced also by a pair of attachment leg parts 76 and 76, and deformation rigidity is improved, and it can acquire the load bearing performance excellent with respect to the input of a vibration load.
- the edge bending portion 74 provided at the proximal end portion of the fixing portion 68 extending in the circumferential direction of the cylindrical portion 54 is abutted against the pair of mounting legs 76 and 76 at both ends in the circumferential direction like the fixing portion 68. Since the edge bending portion 74 is also reinforced by the pair of mounting legs 76, 76, the deformation rigidity of the fixing piece 58 is further improved.
- the specific structure of the mount body 12 as the vibration isolator body is merely an example, and for example, the vibration isolation based on the fluid action of the fluid enclosed in the interior shown in, for example, Japanese Patent No. 3767403
- a vibration isolator body a fluid-filled vibration isolator utilizing the effect, a cylindrical vibration isolator in which an inner shaft member is inserted into an outer cylindrical member, and elastically connected in a radial direction by a main rubber elastic body are used. It is also possible to apply the vibration isolator bracket according to the invention.
- the member equivalent to the inner bracket 22 of the said embodiment is made into 1st, for example. It can also be set as a mounting member. That is, the first mounting member having substantially the same structure as that of the inner bracket 22 is directly vulcanized and bonded to the main rubber elastic body 20, or rubber is press-fitted into a fitting hole penetrating the main rubber elastic body 20 from side to side. Accordingly, the main rubber elastic body 20 can be fixed. In this case, when the first mounting member and the stopper portion 56 of the outer bracket 14 are in direct contact with each other, a bound stopper is formed by the contact between the first mounting member and the stopper portion 56.
- the present invention also includes a vibration isolator bracket in which only one of the stopper portion and the fixed piece is integrally formed in the opening of the cylindrical portion, in which case the stopper portion and the fixed piece are included. Any one of these can be formed as a separate part from the cylindrical portion, and can be later fixed to the cylindrical portion by means such as welding.
- the vibration isolator bracket according to the present invention does not need to include both the stopper portion and the fixed piece, and only one of them may be selectively provided and integrally formed with the cylindrical portion.
- stopper portion and the fixed piece are integrally formed in one opening portion of the tubular portion, either the stopper portion or the fixed piece separated from the tubular portion, It is not necessary to be provided in one opening portion of the cylindrical portion, and may be provided in an opening portion on the opposite side of the cylindrical portion or an axially intermediate portion.
- the outer peripheral reinforcing plate portion 64 of the stopper portion 56 may be formed separately from the contact portion 62 and may be provided after being fixed to the contact portion 62 by means such as welding.
- the edge bending portion 74 of the fixing piece 58 is not limited to the one integrated with the fixing portion 68, and may be a separate body.
- the outer peripheral reinforcing plate portion 64 does not need to be provided continuously over the entire length in the circumferential direction of the contact portion 62, and the protruding dimension from the contact portion 62 does not need to be constant in the circumferential direction.
- the edge bending portion 74 does not need to be provided continuously over the entire outer edge of the fixed portion 68, and the protruding dimension from the fixed portion 68 does not need to be constant.
- the formation position, the protruding dimension, the thickness dimension, and the like of the outer peripheral reinforcing plate portion 64 and the edge bent portion 74 are all specific shapes of the stopper portion 56 and the fixing piece 58, and the stopper portion 56 and the fixing piece 58. It is set appropriately according to the load bearing performance required for the above.
- the gate-shaped member 52 is not essential in the vibration isolator bracket according to the present invention.
- the gate-shaped member 52 is secured to the outer peripheral surface of the tubular portion 54 of the mounting member 50 by attaching a mounting portion to the vehicle body. Can be omitted.
- the vibration isolator bracket and the vibration isolator with bracket according to the present invention are not limited to automobiles, but are used for motorcycles, railway vehicles, industrial vehicles, and the like.
- the present invention can also be applied to a vibration isolator.
- 10 engine mount (anti-vibration device with bracket), 12: mount main body (anti-vibration device main body), 14: outer bracket (bracket for anti-vibration device), 16: first mounting member, 18: second mounting member 20: body rubber elastic body, 50: mounting member, 52: gate-shaped member, 54: cylindrical portion, 56: stopper portion, 58: fixed piece, 60: reinforcing portion, 62: contact portion, 64: outer periphery reinforcement Plate portion (reinforcing rib), 68: fixed portion, 74: edge bending portion (reinforcing rib), 76: mounting leg portion, 78: connecting portion (beam portion), 84: mounting portion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Springs (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015-035783 | 2015-02-25 | ||
JP2015035783A JP6494321B2 (ja) | 2015-02-25 | 2015-02-25 | 防振装置用ブラケットとブラケット付防振装置、防振装置用ブラケットの製造方法 |
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WO2016136916A1 true WO2016136916A1 (ja) | 2016-09-01 |
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PCT/JP2016/055725 WO2016136916A1 (ja) | 2015-02-25 | 2016-02-25 | 防振装置用ブラケットとブラケット付防振装置、防振装置用ブラケットの製造方法 |
Country Status (3)
Country | Link |
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JP (1) | JP6494321B2 (zh) |
CN (1) | CN105909726B (zh) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020152639A1 (en) | 2019-01-25 | 2020-07-30 | Piaggio & C.S.P.A. | A powertrain mounting assembly |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6456340B2 (ja) * | 2016-11-17 | 2019-01-23 | 東洋ゴム工業株式会社 | 防振装置 |
KR102479485B1 (ko) * | 2016-12-13 | 2022-12-19 | 현대자동차주식회사 | 분산된 스토퍼들을 가지는 자동차의 트랜스미션 마운트 |
JP7033413B2 (ja) | 2017-09-13 | 2022-03-10 | 株式会社ブリヂストン | 防振装置の製造方法 |
JP7329429B2 (ja) * | 2019-12-05 | 2023-08-18 | 住友理工株式会社 | ブラケット付き筒型防振装置 |
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JP2011256958A (ja) * | 2010-06-10 | 2011-12-22 | Bridgestone Corp | 防振装置、及び、防振装置用ブラケット |
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JP3929927B2 (ja) * | 2003-04-14 | 2007-06-13 | 本田技研工業株式会社 | 液体封入マウント装置 |
JP5118904B2 (ja) * | 2007-07-04 | 2013-01-16 | 東海ゴム工業株式会社 | 防振装置用空気圧式アクチュエータとそれを用いた流体封入式防振装置 |
JP2011247333A (ja) * | 2010-05-26 | 2011-12-08 | Tokai Rubber Ind Ltd | 防振支持構造 |
CN203832224U (zh) * | 2013-11-22 | 2014-09-17 | 宁波拓普集团股份有限公司 | 一种刚度与阻尼可调式发动机悬置装置 |
-
2015
- 2015-02-25 JP JP2015035783A patent/JP6494321B2/ja active Active
-
2016
- 2016-02-25 WO PCT/JP2016/055725 patent/WO2016136916A1/ja active Application Filing
- 2016-02-25 CN CN201610104451.9A patent/CN105909726B/zh active Active
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JPH0942342A (ja) * | 1995-08-01 | 1997-02-10 | Bridgestone Corp | 防振装置 |
JPH1151100A (ja) * | 1997-07-31 | 1999-02-23 | Toyo Tire & Rubber Co Ltd | ゴムブッシュ |
JP2000046086A (ja) * | 1998-05-27 | 2000-02-15 | Tokai Rubber Ind Ltd | 筒形防振マウント |
JP2011256958A (ja) * | 2010-06-10 | 2011-12-22 | Bridgestone Corp | 防振装置、及び、防振装置用ブラケット |
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JP2013190037A (ja) * | 2012-03-14 | 2013-09-26 | Tokai Rubber Ind Ltd | 防振装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020152639A1 (en) | 2019-01-25 | 2020-07-30 | Piaggio & C.S.P.A. | A powertrain mounting assembly |
EP3914465A4 (en) * | 2019-01-25 | 2022-12-07 | Piaggio&C. S.p.A. | POWER TRAIN MOUNTING ARRANGEMENT |
Also Published As
Publication number | Publication date |
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JP2016156476A (ja) | 2016-09-01 |
CN105909726B (zh) | 2018-09-07 |
CN105909726A (zh) | 2016-08-31 |
JP6494321B2 (ja) | 2019-04-03 |
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