JP2008106867A - Strut mount - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To certainly fix a spring seat on the lower surface side of a second bracket member even in the state of receiving no restoring force from a coil spring. <P>SOLUTION: In this strut mount 10, a hanger formed integrally with the spring seat 74 makes an insertion part 86 project from the upper end part of the spring seat 74 to the upper surface side of a lower bracket 40 through the inside of the connection hole 72 of the lower bracket 49, and also makes an anchor part 88 abut on the upper surface part of the lower bracket 40. Thereby, the spring seat 74 arranged to abut on the lower surface part of the lower bracket 40 is coupled to the lower bracket 40 through the hanger 84, and the movement of the spring seat 74 to the lower bracket 40 is restricted. Accordingly, even in the state where the spring seat 74 does not receive the restoring force from the coil spring 18, the spring seat 74 is certainly fixed to be in contact with the lower surface part of the lower bracket 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a strut mount for mounting a shock absorber constituting a part of a strut type suspension of a vehicle on a vehicle body side in a vibration-proof manner.

  Some vehicles, such as automobiles, have a strut type suspension mechanism composed of a shock absorber or the like between the wheel and the vehicle body. In this type of suspension mechanism, the shock absorber is a vibration isolator. It is elastically mounted on the vehicle body via a strut mount that is a kind of

  As such a strut mount, for example, one described in Patent Document 1 is known. The strut mount described in Patent Document 1 includes a washer that is fixed to the tip of a piston rod of a shock absorber, an upper seat that is fixed to the piston rod at a predetermined distance from the washer, and a space between the washer and the upper seat. The upper body rubber part and the lower body rubber part (insulator rubber) provided in the upper body rubber part, the bracket member extending between the upper body rubber part and the lower body rubber part and extending radially outward, and the outer peripheral part of the bracket member being compressed And a receiving seat rubber portion (spring seat) for receiving a load from the coil spring.

In the strut mount as described above, the spring seat is formed in an annular shape from a rubber material, and this spring seat is press-fitted into the outer peripheral side of the cylindrical holder portion formed on the center side of the bracket member, A restoring force is received from the coil spring in a compressed state, and is pressed against a flange portion formed on the outer peripheral side of the bracket member.
Japanese Laid-Open Patent Publication No. 11-170836

  In the assembly process of the strut mount as described above, the spring seat is press-fitted into the outer peripheral side of the holder portion of the bracket member, and the spring seat is temporarily fixed to the lower surface side of the bracket member by the frictional force with the holder portion, and then the coil spring is The spring seat is assembled to the bracket member by assembling it on the outer peripheral side of the shock absorber and sandwiching the spring seat between the upper end winding portion of the coil spring and the flange portion of the bracket member.

  However, after the spring seat is temporarily fixed to the bracket member and before the coil spring is assembled to the outer periphery of the shock absorber, the spring seat falls off the bracket member, or the spring seat moves from a predetermined assembly position on the bracket member. It may be displaced.

  For this reason, in the assembly process of the strut mount as described above, before assembling the coil spring on the outer periphery side of the shock absorber, the inspection work for confirming that the spring seat is securely fixed to the assembly position in the bracket member. If the spring seat is displaced from the mounting position on the bracket member immediately before the coil spring is assembled to the outer periphery of the shock absorber, the position of the spring seat on the bracket member is adjusted after the assembly of the strut mount is completed. It may be necessary to do this.

  In the strut mount assembly process as described above, when the spring seat is temporarily fixed to the bracket member, the spring seat may be adhered to the bracket member with an adhesive, or the spring seat may be vulcanized and adhered to the bracket member. In many cases, the bracket member is cationically coated as a rust preventive coating on the surface thereof, and it is difficult to bond or vulcanize rubber to such a coated surface.

  In some strut mounts, an insulator rubber and a spring seat are integrally formed, and the spring seat is fixed to the bracket member together with the insulator rubber. In this case, the spring seat and the insulator rubber are usually the same. Therefore, at least one of the spring seat and the insulator rubber cannot be formed with an optimal rubber material corresponding to the required function.

  An object of the present invention is to provide a strut mount that can securely fix the spring seat to the lower surface side of the second bracket member even in a state in which no restoring force is received from the coil spring in consideration of the above facts. There are things to do.

  A strut mount according to claim 1 of the present invention includes a metal core member fixed to a tip end of a rod slidably supported in the axial direction by a cylinder in a shock absorber, and an upper surface of the core member. A first bracket member arranged to face the side and fixed to the vehicle body side, and arranged to face the lower surface side of the core metal member and fixed to the vehicle body side together with the first bracket member. A rubber insulator fixed to the second bracket member and the core metal member and sandwiched in a compressed state between the lower surface portion of the first bracket member and the upper surface portion of the second bracket member Input from the upper end side of the coil spring arranged in contact with the rubber and the lower surface of the second bracket member, and arranged in a compressed state on the outer peripheral side of the shock absorber A spring seat made of rubber that receives a load, a connecting hole formed so as to penetrate the second bracket member in the axial direction, and formed integrally with the spring seat, passing through the connecting hole, and And a rubber suspension member that protrudes from the upper end portion of the spring seat to the upper surface side of the second bracket member and abuts against the upper surface portion of the second bracket member.

  In the strut mount according to the first aspect, the suspension member formed integrally with the spring seat passes through the connection hole of the second bracket member and extends from the upper end of the spring seat to the upper surface side of the second bracket member. The spring seat disposed so as to contact the lower surface of the second bracket member is coupled to the second bracket member via the suspension member by protruding and contacting the upper surface of the second bracket member. Since the movement of the spring seat relative to the second bracket member is restricted, the spring seat is securely fixed so as to be in contact with the lower surface of the second bracket member even when the spring seat is not subjected to the restoring force from the coil spring. I can keep it.

  A strut mount according to a second aspect of the present invention is the strut mount according to the first aspect, wherein the spring seat is integrally formed with a plurality of the suspension members, and the suspension member includes the connection member. An insertion portion that is inserted through the hole and an anchor portion that extends from the upper end portion of the insertion portion to the outer peripheral side and contacts the upper surface portion of the second bracket member are integrally formed.

  A strut mount according to a third aspect of the present invention is the strut mount according to the second aspect, wherein a side end portion of the anchor portion adjacent to the circumferential direction is adjacent to the side end portion along the circumferential direction. It is characterized by being joined to the part.

  The strut mount according to claim 4 of the present invention is the strut mount according to claim 2 or 3, wherein the anchor portion is formed by an upper surface portion of the second bracket member and a lower surface portion of the first bracket member. It is clamped and is compressed along the axial direction.

  A strut mount according to claim 5 of the present invention is the strut mount according to any one of claims 1 to 4, wherein the spring seat is formed as a separate part from the insulator rubber, and the insulator rubber is formed. Is formed of a rubber material having a relatively high damping, and the spring seat is formed of a rubber material having a relatively low dynamic magnification.

  As described above, according to the strut mount of the present invention, the strut mount that can securely fix the spring seat to the lower surface side of the second bracket member even in a state where the restoring force from the coil spring is not received. May be offered.

  Hereinafter, a strut mount according to an embodiment of the present invention will be described with reference to the drawings.

(Configuration of the embodiment)
FIG. 1 shows the structure of a strut mount according to an embodiment of the present invention. The strut mount 10 is used for vibration-proof coupling of a shock absorber 12 constituting a part of a strut type suspension mechanism to a vehicle body. On the other hand, the shock absorber 12 is filled with a fluid such as hydraulic oil, and a cylinder 14 in which a piston is slidably disposed along the axial direction, and a rod 16 connected to the piston and protruding from the cylinder 14. It has. In addition, the code | symbol S in the figure has shown the axial center of the shock absorber, and demonstrates the following description by making the direction along this axial center S into an axial direction.

  An attachment portion 20 to which the strut mount 10 is attached is provided in a fender apron portion or the like in the vehicle body. The attachment portion 20 has an opening 22 at the center thereof and a plurality of outer peripheral sides. An insertion hole 24 is formed. A rod 16 of a shock absorber 12 is connected to the mounting portion 20 via a strut mount 10. As a result, the shock absorber 12 constituting a part of the suspension mechanism is mounted on the vehicle body via the strut mount 10.

  The strut mount 10 is provided with a metal core member 26 at the center. The metal core member 26 is provided with a pipe-like connecting cylinder portion 28 penetrating in the axial direction on the center side, and a bottomed cylindrical insert portion 30 extending from the upper end portion of the connecting cylinder portion 28 to the outer peripheral side. It is integrally formed. On the other hand, a small-diameter portion 32 having a smaller diameter than the proximal end side is formed at the distal end portion of the rod 16, and the outer diameter of the small-diameter portion 24 is slightly smaller than the inner diameter of the connecting cylinder portion 28. . Further, the distal end portion of the small diameter portion 32 is formed with a screw thread to be a male screw portion 34.

  Here, the shock absorber inserts the small-diameter portion 32 of the rod 16 into the connecting cylinder portion 28 and projects the tip end portion of the rod 16 from the connecting cylinder portion 28 toward the vehicle body. In this state, the nut 16 is screwed into the male thread portion 34 of the rod 16, whereby the rod 16 is fastened and fixed to the connecting tube portion 28 of the core metal member 26.

  In the strut mount 10, a substantially thin disc-shaped upper bracket 38 is disposed above the core metal member 26, and a lower bracket 40 is fixed to the lower surface side of the upper bracket 38. The upper bracket 38 has a flat plate-like flange portion 42 formed in an annular shape on the outer peripheral side thereof, and a press-contact portion 44 formed in a dish shape protruding upward on the inner peripheral side of the flange portion 42. Yes. A circular opening 46 penetrating in the axial direction is formed at the center of the pressure contact portion 44. The upper bracket 38 abuts the upper surface side of the flange portion 42 against the lower surface side of the mounting portion 20 of the vehicle body, and opposes the inner peripheral side of the pressure contact portion 44 to the upper end portion of the insert portion 30 along the axial direction. . The flange portion 42 is formed with a plurality (three in this embodiment) of insertion holes 48 penetrating in the axial direction.

  As shown in FIGS. 1 and 2, the upper bracket 38 is formed with a plurality of connecting holes 72 in the middle portion of a pair of adjacent insertion holes 48 in the flange portion 42. In the strut mount 10 according to the present embodiment, three connection holes 72 are provided between the three insertion holes 48 in the flange portion 42, and nine flange portions 42 are provided as a whole. The plurality of connecting holes 72 are arranged along the circumferential direction centered on the axis S, and the pitch along the circumferential direction is equal between the pair of insertion holes 48.

  In the lower bracket 40, a flange portion 50 is formed in an annular shape on the outer peripheral side thereof, and a bottomed cylindrical holder portion 52 is integrally formed on the inner peripheral side of the flange portion 50. A plurality of (three in this embodiment) insertion holes 56 corresponding to the insertion holes 48 in the upper bracket 38 are formed in the flange portion 50. The lower bracket 40 abuts the flange portion 50 on the flange portion 42 of the upper bracket 38, and the plurality of insertion holes 56 are made to coincide with the plurality of insertion holes 48 in the upper bracket 38, respectively. In this state, the lower bracket 40 supports the peripheral wall portion of the holder portion 52 on the outer peripheral side of the insert portion 30 and makes the bottom plate portion of the holder portion 52 face the lower surface side of the insert portion 30. A circular opening 58 through which the small diameter portion 32 of the shock absorber 12 and the connecting cylinder portion 28 of the cored bar member 26 are inserted is formed at the center of the bottom plate of the holder portion 52.

  Bolts 68 are respectively inserted into the plurality of insertion holes 48 and 56 in the upper bracket 38 and the lower bracket 40 from below. The front end side of the bolt 68 is inserted through the insertion hole 24 of the mounting portion 20 and protrudes upward from the mounting portion 20. In the strut mount 10, the upper bracket 38 and the lower bracket 40 are fixed to each other by screwing the nut 60 into the front end portion of the bolt 68 protruding from the mounting portion 20 until a predetermined fastening torque is generated. 38 and the lower bracket 40 are fastened and fixed to the lower surface side of the mounting portion 20.

  The strut mount 10 is provided with an insulator rubber 70 that is vulcanized and bonded to the outer peripheral side and the lower surface side of the insert portion 30 of the cored bar member 26. The insulator rubber 70 is molded (vulcanized) from a rubber material. When the insulator rubber 70 is molded, the cored bar member 26 is loaded as an insert core at a predetermined position in the molding mold, and after the molten rubber material is injected into the mold, a predetermined cooling is performed. Cooled at conditions. Thereby, the insulator rubber 70 is vulcanized and molded in the mold, and the insert portion 30 of the core metal member 26 is vulcanized and bonded to the insulator rubber 70.

  As shown in FIG. 1, the insulator rubber 70 is formed in a substantially thick cylindrical shape, and the end portion of the insert portion 30 is directed from the inner peripheral surface of the insulator rubber 70 toward the outer peripheral side. Inserted.

  In the strut mount 10, as shown in FIG. 1, the insulator rubber 70 is press-fitted into the holder portion 52 of the lower bracket 40 and pressed from above by the press-contact portion 44 of the upper bracket 38 fixed to the lower bracket 40. Has been. As a result, the insulator rubber 70 is sandwiched between the bottom plate portion of the holder portion 52 and the press contact portion 44 and is compressed in the axial direction (pre-compressed state), and is added to the inner peripheral side by the peripheral wall portion of the holder portion 52. The compressed state (pre-compressed state) is also applied in the pressed radial direction.

  As shown in FIG. 1, the strut mount 10 is provided with a substantially ring-shaped spring seat 74 on the lower surface side of the lower bracket 40. The spring seat 74 is formed with an annular main body 76 having a substantially constant thickness along the axial direction on the upper end side thereof, and a plurality of protrusions 78 protruding from the lower end surface of the main body 76. Is formed. The projecting portion 78 is formed in a substantially truncated pyramid shape whose cross-sectional area gradually decreases downward, and a lower end surface thereof is a load receiving surface 80 formed in a planar shape.

  As shown in FIG. 2B, the spring seat 74 is formed with arch portions 82 each having a narrow width along the radial direction on the inner peripheral side of the three insertion holes 48 in the lower bracket 40. In addition, two projections 78 are provided between a pair of arch portions 82 adjacent to each other, and six projections 78 are provided as a whole of the spring seat 74.

  The strut mount 10 is integrally formed with a rubber suspension member 84 that protrudes from the upper end surface of the spring seat 74. The suspension member 84 is formed with a plurality of (9 in this embodiment) insertion portions 86 that are inserted through the connection holes 72 of the lower bracket 40, and from the upper end portion of the insertion portion 86. An anchor portion 88 that extends to the outer peripheral side and contacts the lower surface side with the upper surface portion of the lower bracket 40 is integrally formed. Here, as shown in FIG. 2 (B), the anchor portion 88 extends in the circumferential direction centering on the axis S, and between the pair of insertion holes 48 in the lower bracket 40 in the circumferential direction. The side end portion along the side is joined and integrated with the side end portion of another adjacent anchor portion 88. As shown in FIG. 3, the upper end surface of the anchor portion 88 is about 0.1 to 3 mm, preferably 0.1 to 1 mm, with respect to the upper surface of the lower bracket 40, and the lower surface of the upper bracket 38. And a compressed state along the axial direction. Thereby, the restoring force along the axial direction from the anchor portion 88 acts on the upper bracket 38 and the lower bracket 40, respectively, and rattling between the upper bracket 38 and the lower bracket 40 is reliably prevented.

Here, the reason why the protrusion length of the anchor portion 88 with respect to the upper surface of the lower bracket 40 is set to 0.1 to 3 mm is that the compression amount (rubber compression) of the anchor portion 88 cannot be sufficiently obtained when the length is 0.1 mm or less. There is a possibility that the pressure contact force to 38 is insufficient,
If it exceeds 3 mm, the upper bracket 38 may be lifted from the lower bracket 40 when the bolt 68 is fastened.

  The reason why the protrusion length of the anchor portion 88 with respect to the upper surface of the lower bracket 40 is preferably set to 0.1 to 1 mm is that workability is deteriorated due to an increase in tightening torque at the time of fastening with the saddle bolt 68 exceeding 1 mm or more. This is because there is a fear.

  In the strut mount 10, as shown in FIG. 1, in a state where the lower bracket 40 is fastened and fixed to the mounting portion 20 on the vehicle body side together with the upper bracket 38, the anchor portion 88 of the suspension member 84 is the upper surface portion of the lower bracket 40. And a lower surface portion of the upper bracket 38 and is compressed along the axial direction. Accordingly, the lower surface side of the anchor portion 88 is in close contact with the upper surface portion of the upper bracket 38 in a surface contact state, and the movement of the anchor portion 88 in the surface direction and the axial direction along the upper surface portion of the lower bracket 40 is restricted. Backlash in the surface direction and the axial direction of the spring seat 74 connected to the anchor portion 88 via the insertion portion 86 is also reliably prevented.

  The spring sheet 74 and the suspension member 84 are molded (vulcanized) from the same rubber material. When the spring seat 74 and the suspension member 84 are molded, the lower bracket 40 is loaded as an insert core at a predetermined position in the molding mold, and after the molten rubber material is injected into the mold, Cooling is performed under predetermined cooling conditions. As a result, the spring seat 74 and the suspension member 84 are vulcanized in the mold. At this time, the suspension member 84 causes the insertion portion 86 to pass through the connection hole 72 in the lower bracket 40 and causes the anchor portion 88 to abut on the upper surface portion of the lower bracket 40.

  In the strut mount 10, as shown in FIG. 1, a ring-shaped bearing member 90 is disposed on the lower side of the spring seat 74, and the spring seat fixed to the axially intermediate portion of the bearing member 90 and the cylinder 14. A coil spring 18 in a compressed state is interposed between (not shown). In the strut mount 10, the shock absorber 12 has a function as a column of a suspension mechanism (front suspension), and a bearing member 90 is interposed between the lower bracket 40 and the coil spring 18. The cylinder 14 of the absorber 12 can rotate relative to the vehicle body side.

  The bearing member 90 is in pressure contact with the plurality of load receiving surfaces 80 of the spring seat 74 in a surface contact state. A seat receiving portion 92 corresponding to the wire shape of the coil spring 18 is formed in an annular shape on the lower end side of the bearing member 90, and the upper end winding portion 19 of the coil spring 18 is formed on the seat receiving portion 92. It is mated. Accordingly, the spring seat 74 receives a restoring force from the coil spring 18 in a compressed state via the bearing member 90, and is pressurized to the flange portion 50 side of the lower bracket 40 by the restoring force, and the flange portion. 50 and the bearing member 90 are compressed along the axial direction.

  In the strut mount 10 according to the present embodiment, the insulator rubber 70 and the spring seat 74 are formed of rubber materials having different characteristics. That is, the spring seat 74 itself is preferably soft and low in rigidity, but in order to hold the suspension of the coil spring 18, it needs to be hard and rigid.

  The spring seat 74 preferably has a reduced spring constant (dynamic spring constant Kd) generated in a state where vibration is applied, that is, dynamic motion, considering the spring constant from the viewpoint of vibration-proof characteristics. In order to maintain the vehicle, since it is used in a static state, the amount of deflection can be reduced by increasing the static spring constant (Ks). The steering stability can be improved.

  Taking the above points into consideration, it can be said that the smaller the dynamic magnification (the ratio of the dynamic spring constant to the static spring constant), the better the performance of the spring seat 74 as a vibration-proof rubber. Examples of the rubber material that can obtain such a low dynamic magnification include NR (natural rubber).

  On the other hand, the insulator rubber 70 is required to have high damping because it directly receives vibration from the rod 16 of the shock absorber 12. Examples of rubber materials that can achieve such high damping include NR / SBR (natural rubber / styrene butadiene rubber) blend rubber and NR / IIR (natural rubber / butyl rubber) blend rubber.

(Operation of the embodiment)
Next, the operation of the strut mount 10 configured as described above will be described. In the strut mount 10, when vibration is input from the road surface side to the strut mount 10 via the rod 16, the insulator rubber 70 disposed between the core metal member 26 and the brackets 38 and 40 is elastically deformed. At this time, the vibration input to the strut mount 10 is attenuated and absorbed by the vibration absorbing action based on the internal friction of the insulator rubber 70 and the vibration transmission from the shock absorber 12 to the vehicle body side is effectively cut off.

  In the strut mount 10, when the coil spring 18 expands and contracts in accordance with the expansion and contraction of the rod 16, the load input from the coil spring 18 to the spring seat 74 also changes, but the spring seat 74 is elastically deformed by this load change (vibration). The vibration transmitted from the coil spring 18 to the vehicle body side is attenuated and absorbed. At this time, when the load change input from the coil spring 18 is relatively small, the projection 78 of the spring seat 74 is elastically deformed preferentially over the main body 76, so that the dynamic spring constant Kd is relatively Kept small. On the other hand, as the load change input from the coil spring 18 increases, the amount of elastic deformation of the main body 76 in the spring seat 74 increases, so that the static spring constant of the spring seat 74 as a whole increases, and the spring seat against the input load increases. Since the deformation amount as a whole is reduced, the change in suspension geometry can be suppressed, and the driving stability of the automobile can be improved.

  In the strut mount 10 according to the present embodiment described above, the suspension member 84 formed integrally with the spring seat 74 passes through the connecting hole 72 of the lower bracket 40 through the insertion portion 86 from the upper end portion of the spring seat 74. The surface of the lower bracket 40 is cationically coated by projecting to the upper surface side of the bracket 40 and the anchor portion 88 abutting against the upper surface portion of the lower bracket 40, and the spring seat 74 cannot be vulcanized and bonded to the lower bracket 40. The spring seat 74 disposed so as to contact the lower surface portion of the lower bracket 40 is connected and fixed to the lower bracket 40 via the suspension member 84, and the movement of the spring seat 74 relative to the lower bracket 40 is restrained. The seat 74 has a restoring force from the coil spring 18. Even only absence, the spring seat 74 can be securely fixed in contact with the lower surface of the lower bracket 40.

  As a result, according to the strut mount 10 according to the present embodiment, the spring seat 74 can be securely fixed to the lower surface side of the lower bracket 40 even in a state where the restoring force from the coil spring 18 is not received. During the assembly of the strut mount 10, it is possible to prevent the spring seat 74 from dropping from the lower bracket 40 or the spring seat 74 from being displaced from a predetermined assembly position in the lower bracket 40.

  In the strut mount 10 according to the present embodiment, the coil spring 18 is pressed against the spring seat 74 via the bearing member 90, but the upper end winding portion 19 of the coil spring 18 is directly pressed against the lower surface side of the spring seat. Even in the strut mount, the suspension member is integrally formed on the spring seat, the insertion portion of the suspension member is projected to the upper surface side of the lower bracket through the lower bracket, and the anchor portion is applied to the upper surface portion of the lower bracket. You may make it contact.

It is sectional drawing along the axial direction which shows the structure of the attaching part of the strut mount in the strut mount which concerns on embodiment of this invention, and a vehicle body. (A) is a top view which shows the upper surface side of the lower bracket, spring seat, and suspension member in the strut mount shown in FIG. 1, (B) is the lower bracket, spring seat, and suspension member in the strut mount shown in FIG. It is a top view which shows the lower surface side. It is side surface sectional drawing of the lower bracket in the strut mount shown by FIG. 1, a spring seat, and a suspension member.

Explanation of symbols

10 Strut mount 12 Shock absorber 14 Cylinder 16 Rod 26 Core metal member 38 Upper bracket (first bracket member)
40 Lower bracket (second bracket member)
70 Insulator rubber 74 Spring seat 76 Body portion 78 Projection portion 80 Load receiving surface 84 Suspension member 86 Insertion portion 88 Anchor portion

Claims (5)

A metal cored bar member fixed to the tip of the rod slidably supported along the axial direction by a cylinder in the shock absorber;
A first bracket member arranged to face the upper surface side of the cored bar member and fixed to the vehicle body side;
A second bracket member disposed to face the lower surface side of the cored bar member and fixed to the vehicle body side together with the first bracket member;
A rubber insulator rubber fixed to the core member and sandwiched in a compressed state between a lower surface portion of the first bracket member and an upper surface portion of the second bracket member;
A rubber spring seat that is disposed so as to contact the lower surface of the second bracket member and receives a load input from an upper end side of a coil spring disposed in a compressed state on the outer peripheral side of the shock absorber;
A connecting hole formed in the second bracket member so as to penetrate in the axial direction;
A rubber that is integrally formed with the spring seat, protrudes from the upper end portion of the spring seat to the upper surface side of the second bracket member through the connection hole, and contacts the upper surface portion of the second bracket member A suspension member made of,
A strut mount characterized by comprising: The spring seat is integrally formed with a plurality of the suspension members,
The suspension member is integrally formed with an insertion portion that is inserted through the connection hole and an anchor portion that extends from the upper end portion of the insertion portion to the outer peripheral side and contacts the upper surface portion of the second bracket member. The strut mount according to claim 1, wherein the strut mount is provided.   3. The strut mount according to claim 2, wherein the anchor portion has a side end portion along the circumferential direction joined to a side end portion of at least one of the anchor portions adjacent along the circumferential direction. .   The said anchor part is clamped by the upper surface part of the said 2nd bracket member, and the lower surface part of the said 1st bracket member, and is made into a compression state along the said axial direction. Strut mount.   The spring seat is formed as a separate part from the insulator rubber, the insulator rubber is formed of a rubber material having a relatively high damping, and the spring seat is a rubber material having a relatively low dynamic magnification. The strut mount according to any one of claims 1 to 4, wherein the strut mount is formed.

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