JP5662773B2 - Muffler support - Google Patents

Description

  The present invention relates to a muffler support for supporting the exhaust pipe of an automobile on a vehicle body with vibration isolation, and in particular, has a novel structure that enables easy mounting work without impairing the vibration isolation performance and durability of the muffler support. About muffler support.

  Conventionally, a muffler support has been used as a support portion of the exhaust pipe to the vehicle body. There is also a hanging type formed of a single rubber as a muffler support, but with such a single muffler support, it is difficult to reliably limit the amount of displacement of the exhaust pipe in order to avoid interference with other parts of the exhaust pipe. Therefore, for example, as shown in Japanese Patent Application Laid-Open No. 2005-2963 (Patent Document 1), a mounting shaft fitting attached to the exhaust pipe is inserted and disposed in a groove of a groove-shaped fitting attached to the vehicle body. There has been proposed a muffler support having a structure in which the mounting shaft bracket is connected to both side walls of the groove-shaped mounting bracket with a pair of rubber elastic bodies.

  By the way, the muffler support is required to secure a soft spring characteristic as compared with a general anti-vibration mount or the like for vibration insulation of the exhaust pipe while ensuring sufficient durability. Therefore, as shown in Patent Document 1 above, in order to realize a soft spring characteristic in the vertical direction as the vibration input direction of the exhaust pipe while securing the rubber volume and maintaining the durability, the mounting shaft A pair of rubber elastic bodies extending in a substantially horizontal direction toward both side walls of the groove-shaped mounting bracket is adopted on both sides of the metal fitting, and the main deformation in the vibration input direction of the exhaust pipe in this rubber elastic body is shear deformation. It is supposed to be.

  On the other hand, since the exhaust pipe is long and extends from the front to the rear of the vehicle body, the exhaust pipe side mounting position and the vehicle body side mounting position in the muffler support are caused by variations in parts and assembly of the automobile. Are easily misaligned with each other. Therefore, the muffler support is required to be able to be mounted with good workability without any major trouble even when such a mounting position shifts.

  However, in the muffler support having the conventional structure as described in Patent Document 1 described above, the main rubber elastic body extending in a substantially horizontal direction, which is adopted to realize soft spring characteristics, is provided on both sides of the mounting shaft bracket with respect to the groove-shaped mounting bracket. When the relative displacement in the approach / separation direction to the wall occurs, compression / tensile deformation occurs. Therefore, if there is a deviation between the mounting position of the mounting shaft bracket on the exhaust pipe side and the mounting position of the groove mounting bracket on the vehicle body side, the mounting shaft bracket is displaced relative to the groove mounting bracket. When mounting at each mounting position on the exhaust pipe side and the vehicle body side, the rubber elastic body is compressed / tensilely deformed between the mounting shaft bracket and the groove mounting bracket, so mounting work is required due to large deformation rigidity. It was very difficult.

JP 2005-2963 A

  Here, the present invention has been made in the background as described above, and the problem to be solved is that the rubber material itself has a low spring and a decrease in durability due to a decrease in rubber volume, and vibration input. The difficulty of mounting work due to relative dimensional variations in the mounting positions on the exhaust pipe side and the vehicle body side during mounting is avoided without the problem of reduced vibration isolation performance due to higher spring characteristics in the direction. It is to provide a muffler support having a novel structure that can be effectively reduced.

That is, according to the first aspect of the present invention, an inner mounting member attached to the exhaust pipe is disposed between a pair of opposed plate portions provided in an outer mounting member attached to the vehicle body, and the inner mounting member In the muffler support provided with a pair of rubber elastic bodies extending on both sides toward the pair of opposed plate portions, an orthogonal cross-sectional area with respect to the extending direction from the inner mounting member to the opposed plate portion in the pair of rubber elastic bodies, A muffler support having a thickened base end portion formed at the end on the side fixed to the counter plate portion and having a hollow hole extending along the counter plate portion inside the base end portion. And

  In the muffler support according to this aspect, the inner mounting member is relatively displaced in the approach / separation direction with respect to the pair of opposed plate portions in the outer mounting member by providing the hole in the base end portion of the rubber elastic body. At this time, the spring characteristic of the base end portion in the load direction exerted along with it is softened, and elastic deformation can be easily allowed. In addition, when the inner mounting member is displaced relative to the outer mounting member in a direction parallel to the pair of opposing plate portions, the elastic deformation of the main rubber elastic body itself is mainly shear deformation, which is easy. Can be acceptable. Therefore, it is possible to easily adjust the relative positions of the inner mounting member and the outer mounting member on the exhaust pipe side and the vehicle body side based on the soft spring rigidity of the base end portion and the rubber elastic body itself. Is possible. Therefore, even if the mounting position of the muffler support on the exhaust pipe side and the mounting position on the vehicle body side are relatively deviated due to individual differences for each vehicle due to component dimensional errors, assembly errors, etc., the muffler support inner The attachment member and the outer attachment member can be easily attached to the respective attachment positions, and the muffler support can be attached to the vehicle with excellent workability.

  Moreover, the base end portion provided with the hollow hole is not only provided at the end portion of the rubber elastic body, but also the entire end portion is secured to the opposing plate portion and is restrained. The cross-sectional area of the end portion is larger than the main body portion of the rubber elastic body. As a result, in the vertical vertical direction, which is the input direction of the support load of the exhaust pipe and the main vibration, the spring characteristics due to the base end portion can be significantly reduced, and the concentration of stress and deformation on the base end portion can be reduced or avoided. As a result, excellent performance can be ensured in all of the support characteristics and vibration-proof performance of the exhaust pipe and the durability of the rubber elastic body.

  According to a second aspect of the present invention, in the muffler support according to the first aspect, a structure in which the hollow hole in the base end portion is formed through the inside of the base end portion is adopted. It is what.

  In the muffler support of this aspect, the spring at the proximal end portion in the input direction exerted on the rubber elastic body when the inner mounting member is relatively displaced in the approach / separation direction with respect to the pair of opposed plate portions in the outer mounting member The rigidity can be further effectively reduced. As a result, when the mounting position of the muffler support on the exhaust pipe side and the mounting position on the vehicle body side are relatively shifted, the work for mounting the inner mounting member and the outer mounting member to each mounting position. Can be performed more easily.

  According to a third aspect of the present invention, there is provided the muffler support according to the second aspect, wherein the through hole is formed so as to penetrate in a vertical direction in a mounted state that is a main input direction of vibration. It is what.

  In the muffler support according to this aspect, the vertical hole springs that serve as an input direction of the exhaust pipe support load and vibration resulting from the provision of the thinning portions are formed by forming the thinning holes in the vertical direction. It is more effective to reduce the spring characteristics of the rubber elastic body when the inner mounting member is relatively displaced in the approach / separation direction with respect to the pair of opposing plate portions while avoiding adverse effects on characteristics and durability. It becomes feasible.

  According to a fourth aspect of the present invention, there is provided the muffler support according to the third aspect, wherein the width dimension of the hollow hole is made larger than the width dimension in the intermediate portion in the extending direction of the rubber elastic body. It is what.

  In the muffler support of this aspect, when the inner mounting member is relatively displaced in the approach / separation direction with respect to the pair of opposing plate portions, the force exerted from the main body portion of the rubber elastic body on the base end portion is It can be made to work more efficiently in the direction of crushing the hole. As a result, the spring characteristic exhibited by the rubber elastic body when the inner mounting member is relatively displaced in the approaching / separating direction with respect to the pair of opposing plate portions can be further reduced at the base end portion.

  According to a fifth aspect of the present invention, in the muffler support according to any one of the first to fourth aspects, the inner mounting member has a linearly extending shaft shape, while the outer mounting member is A pair of side plate portions are integrally formed on both sides of the bottom plate portion, and the inner mounting member is disposed in a state of extending in the groove direction of the outer mounting member. The inner mounting member and the outer mounting member are elastically connected by the pair of rubber elastic bodies extending on both sides toward the pair of side plate portions as the pair of opposing plate portions, and a main input direction of vibration A structure is adopted in which the pair of rubber elastic bodies extends obliquely downward from the inner mounting member toward the pair of side plate portions of the outer mounting member in the vertical direction in the mounted state.

  In the muffler support of this aspect, the rubber of the rubber elastic body that elastically connects the opposing surfaces of the inner mounting member and the pair of opposing plate portions by ensuring that the inner mounting member has an axial shape and the axial length is secured. The volume can be set large including the base end portion. As a result, the degree of freedom in tuning the spring characteristics can be increased while ensuring durability. The rubber elastic body including the base end portion even when a support load of the exhaust pipe is exerted on the rubber elastic body in the mounted state by the pair of rubber elastic bodies extending obliquely downward. Thus, the tensile stress generated can be reduced, and the durability can be further improved.

  According to a sixth aspect of the present invention, there is provided the muffler support according to any one of the first to fifth aspects, wherein a support load of the exhaust pipe is further provided between the inner mounting member and the outer mounting member. In the mounted state exerted, a structure in which the cutout hole in the proximal end portion is crushed at least partially is adopted.

  In the muffler support of this aspect, the inner mounting member and the outer mounting member are relatively displaced by the action of the hollow hole in the base end portion during the mounting work on the automobile, so that the exhaust pipe and the mounting position of the vehicle body are relative to each other. Installation work can be performed easily. On the other hand, after mounting on the automobile, the hollow hole in the base end part is crushed at least partially, which further adversely affects the anti-vibration characteristics and durability of the rubber elastic body due to the provision of the hollow hole. It can be effectively avoided and the target performance can be more stably exhibited.

  In the muffler support having the structure according to the present invention, a base end portion having a large cross-sectional area is formed in a fixing portion of the rubber elastic body connecting the inner mounting member and the outer mounting member to the opposing plate portion, and the base end portion The inner mounting member approaching / separating direction with respect to the opposing plate portion of the outer mounting member while avoiding as much as possible the deterioration of vibration isolation performance and durability exhibited by the rubber elastic body The relative displacement is easily allowed under low spring rigidity, and the improvement of the mounting workability corresponding to the relative dimensional variations of the mounting positions on the exhaust pipe side and the vehicle body side can be effectively achieved.

The front view of the muffler support as 1st embodiment of this invention. The top view of the muffler support shown by FIG. The right view of FIG. IV-IV sectional view of FIG. FIG. 3 is a reference diagram illustrating the mounting state of the muffler support shown in FIG. 1.

  Embodiments of the present invention will be described below with reference to the drawings.

  1-4 show a muffler support 10 as a first embodiment of the present invention. The muffler support 10 has a structure in which an inner mounting member 12 and an outer mounting member 14 are elastically connected by a pair of rubber elastic bodies 16 and 16. As shown in FIG. 5, the inner attachment member 12 is fixedly attached to the exhaust pipe 18, while the outer attachment member 14 is fixedly attached to the vehicle body 20 of the vehicle. The middle portion in the longitudinal direction of the exhaust pipe 18 is supported by vibration isolation with respect to the vehicle body 20.

  In the following description, the vertical direction means, in principle, the vertical direction in FIG. 1 which is a substantially vertical vertical direction when the vehicle is mounted. Further, the left-right direction in FIG. 1 which is almost horizontal when mounted on the vehicle is referred to as the left-right direction, and the direction perpendicular to the paper surface of FIG. In the actual vehicle mounting state, either the left-right direction or the front-rear direction in the description may be the left-right direction of the vehicle or the front-rear direction of the vehicle. Or an oblique direction inclined with respect to the front-rear direction.

  In addition, in the mounting state on the automobile, a shared support load of the exhaust pipe 18 is exerted between the inner mounting member 12 and the outer mounting member 14. As a result, the rubber elastic bodies 16, 16 are elastically deformed, and the inner mounting member 12 is positioned relative to the outer mounting member 14 with a predetermined relative displacement downward.

  More specifically, the inner mounting member 12 is a shaft-shaped metal fitting that extends linearly with a constant cross-sectional shape in the front-rear direction in the mounted state, and a mounting hole 22 that extends through in the axial direction is formed on the central axis. Is formed. Of the outer peripheral surface of the inner mounting member 12, the left and right side surfaces 24, 24 are parallel inclined surfaces with the upper portion extending in the vertical direction substantially in parallel, and the lower portion is inclined downward with the width dimension gradually decreasing downward. It is considered as a surface. Further, the mounting hole 22 of the inner mounting member 12 is provided with irregularities extending in the axial direction, and has a petal-shaped cross-sectional shape as a whole.

  Then, as shown in phantom lines in FIG. 5 representing the mounting state on the automobile, the hook-shaped (reverse L-shaped) mounting shaft 28 fixed to the exhaust pipe 18 is attached to the mounting hole of the inner mounting member 12. It is attached by being inserted into 22 and fixed with bolts or the like as necessary. The outer peripheral surface of the mounting shaft 28 is provided with irregularities corresponding to the inner peripheral surface of the mounting hole 22 so that rotation of the mounting shaft 28 around the central axis relative to the inner mounting member 12 is prevented. Yes.

  On the other hand, the outer mounting member 14 is formed by, for example, pressing a band plate-shaped metal fitting, and a pair of rising portions that rise upward on both sides in the length direction of the flat bottom plate portion 30 extending in the left-right direction. A pair of left and right side plate portions 32, 32 as opposing plate portions are formed in a groove shape. The bottom plate portion 30 and the side plate portions 32 and 32 have substantially constant width dimensions substantially the same as the axial length of the inner mounting member 12. Further, the bottom plate portion 30 and the side plate portions 32, 32 are provided with reinforcing ribs 34 extending substantially along the entire length in the width direction.

  Further, the outer mounting member 14 is integrally formed with mounting plate portions 36, 36 that horizontally spread outward from the upper end edge portions of the side plate portions 32, 32. Bolt holes 38, 38 are provided in the respective central portions of the mounting plate portions 36, 36, and fixing bolts (not shown) are inserted into the bolt holes 38 and screwed into the vehicle body 20, whereby both side plate portions are provided. 32 and 32 are fixed to the vehicle body 20 by bolts. In addition, between each side board part 32 and the attachment board part 36, the reinforcement pieces 40 and 40 extended ranging between both width direction edge parts are integrally formed.

  And with respect to the outer mounting member 14 having a groove shape extending in the front-rear direction, the inner mounting member 12 extends in the front-rear direction at a position away from the bottom by a predetermined distance at the center portion in the width direction in the groove portion. It is arranged. Further, a pair of rubber elastic bodies 16 and 16 are disposed on both the left and right sides of the inner mounting member 12 in the direction perpendicular to the axis, and the left and right side surfaces 24 and 24 of the inner mounting member 12 and the outer mounting member 14 The opposing surfaces of the left and right side plate portions 32, 32 are elastically connected by the pair of rubber elastic bodies 16, 16.

  The pair of rubber elastic bodies 16, 16 extend obliquely downward on both the left and right sides of the inner mounting member 12, and as shown in the front view of FIG. Yes. Then, when the shared support load of the exhaust pipe 18 is applied in the vertical direction between the inner mounting member 12 and the outer mounting member 14 in the mounted state of the muffler support 10, as shown in FIG. The rubber elastic bodies 16, 16 are elastically deformed by the shared support load. As a result, the inner mounting member 12 is positioned relative to the outer mounting member 14 by being displaced by a predetermined amount downward, and the inner mounting member 12 is positioned substantially in the center of the concave groove of the outer mounting member 14. To be done. Thereby, generation | occurrence | production of the tensile stress to the rubber elastic bodies 16 and 16 accompanying vibration input is reduced, and durability is improved.

  Further, the pair of rubber elastic bodies 16, 16 are respectively extended from the inner mounting member 12 to the vicinity of the side plate portion 32 of the outer mounting member 14 and the end of the outer mounting member 14 on the side plate portion 32 side. And a base end portion 44 fixed to the side plate portion 32 and integrally formed. That is, the muffler support 10 of the present embodiment is configured as an integrally vulcanized molded product in which a pair of rubber elastic bodies 16 and 16 are integrally molded by being vulcanized and bonded to the inner mounting member 12 and the outer mounting member 14.

  The main body portions 42, 42 of the pair of rubber elastic bodies 16, 16 have a constant cross-sectional shape that is substantially rectangular, and "C" diagonally downward from the inner mounting member 12 toward the left and right side plate portions 32, 32. In a plan view (see FIG. 1) and extends in a straight line (see FIG. 2).

  On the other hand, each base end portion 44 has a thick, substantially rectangular block shape, and the outer end surface of the main body portion 42 is integrated with the central portion of one surface (the surface on the inner attachment member 12 side). It is connected to. Further, the other surface (surface on the outer attachment member 14 side) of the base end portion 44 is vulcanized and bonded to the substantial center of the side plate portion 32 of the outer attachment member 14 on the entire surface thereof.

  Here, looking at the cross section orthogonal to the left-right direction in FIGS. 1 and 2, which is the extending direction of the rubber elastic body 16, the base end portion 44 as compared with the main body portion 42 as shown in FIG. Has a larger cross-sectional shape, and its cross-sectional area is increased. An external force input to the rubber elastic body 16 between the inner mounting member 12 and the outer mounting member 14 is applied from the main body portion 42 to the substantially central portion of the base end portion 44.

  Each base end portion 44 is formed with a through hole 46 so as to extend along the surface of the side plate portion 32. The fillet hole 46 of the present embodiment is formed by linearly penetrating the base end portion 44 with a substantially constant cross-sectional shape in the up-down direction in the mounted state, which is the main input direction of vibration to be damped. In particular, the lightening hole 46 is formed in the central portion of the base end portion 44 in the width direction, and the width dimension (B1) of the lightening hole 46 is larger than the cross-sectional width dimension (B2) of the main body part 42. Yes. As a result, as shown in FIG. 4, the main body portion 42 overlaps with the lightening hole 46 in the left-right projection.

  In the muffler support 10 of the present embodiment having the above-described structure, when the main vibration to be vibrated is applied in the vertical direction in the mounted state, it is based on the elastic deformation of the pair of rubber elastic bodies 16 and 16. The inner mounting member 12 is elastically displaced with respect to the outer mounting member 14, and the intended vibration isolation effect is exhibited. When the vibration is input, the pair of rubber elastic bodies 16 and 16 are substantially sheared and deformed, so that a soft spring characteristic is exhibited and an excellent vibration insulating effect can be obtained.

  Further, in an automobile, due to superposition of dimensional errors and assembly errors in various components of the exhaust pipe 18 and the vehicle body 20, there is a gap between the exhaust pipe 18 and the fixing screw hole of the vehicle body 20 in the mounting portion of the muffler support 10. The relative displacement is likely to occur. Such displacement is caused by relatively displacing the inner mounting member 12 and the outer mounting member 14 when the muffler support 10 is mounted, and mounting the inner mounting member 12 and the outer mounting member 14 to the exhaust pipe 18 and the vehicle body 20 respectively. It will correspond.

  At that time, in the muffler support 10 having the above-described structure, the base end portion 44 constituting the rubber elastic body 16 is formed with the hollow hole 46, so that the inner mounting member 12 and the outer mounting member 14 are moved in the horizontal direction. In the left-right direction, the low spring rigidity (soft spring characteristic) of the base end portion 44 accompanying the collapse of the thinned portion 46 is exhibited. Therefore, it is possible to relatively displace the inner mounting member 12 and the outer mounting member 14 not only in the front-rear direction in which the elastic deformation of the main body portion 42 is the shearing direction but also in the left-right direction. It can be easily tolerated under the low spring rigidity, and the muffler support 10 has a good workability with respect to the automobile by coping with the relative displacement between the exhaust pipe 18 and the fixing screw hole of the vehicle body 20. It becomes possible to install.

  In addition, in the muffler support 10 of the present embodiment, the cross-sectional area of the base end portion 44 in the cross section in the direction perpendicular to the axis of the rubber elastic body 16 is larger than the main body portion 42, and the outer end surface of the base end portion 44 is the entire surface. The elastic main shaft of the rubber elastic body 16 that is fixed to the outer mounting member 14 over the distance between the inner mounting member 12 and the outer mounting member 14 and whose inner method in the load acting direction extends between the opposing surfaces of the inner mounting member 12 and the outer mounting member 14. For example, the exhaust pipe support spring characteristics and vibration isolation required for the rubber elastic body 16 are provided even if the base hole 44 is formed with the hollow hole 46. There are no major problems with respect to characteristics, durability, and the like.

  That is, the base end portion 44 of the rubber elastic body 16 is subjected to a component force that causes a vibration load exerted in the vertical direction to become a compressive force in the thickness direction (the left-right direction in FIGS. 1 and 2) through the main body portion 42. It becomes. The spring characteristics in the thickness direction of the base end portion 44 are softened by the hollow holes 46, but for the reasons described above (the cross-sectional area of the base end portion 44 is larger than that of the main body portion 42). And the like, the base end portion 44 is fixed to the outer mounting member 14 on the entire surface, the size of the thickness reduction portion 46 is reduced in the direction of the load, and the like. Even if it contributes to the initial load of vibration as an effect of improving the anti-vibration performance by lowering the spring, the anti-vibration performance accompanying excessive reduction of the stiffness of the elastic elastic body 16 and the anti-vibration spring There is no problem regarding durability and the like.

  In particular, as shown in FIG. 5, when the vibration load increases, at least a part of the thinning hole 46 is crushed and substantially disappears. The effect can be substantially avoided. Even in a stationary state where no vibration load is applied, the exhaust pipe 18 is mounted in a state in which at least a part of the fillet hole 46 is crushed as shown in FIG. It is also possible to prevent the influence on the spring characteristics under the mounting state associated with the formation of the hollow hole 46 as much as possible. Even in the case where the lightening hole 46 is crushed under the mounting state or the vibration input as described above, the low spring rigidity in the left-right direction is applied as described above based on the action of the lightening hole 46 when mounting. The technical effect of facilitating the mounting work based on the conversion can be effectively exhibited.

  As mentioned above, although embodiment of this invention was explained in full detail, this is an illustration to the last and this invention is not interpreted limitedly by the specific description in this embodiment. For example, the specific structure of the hollow hole formed in the base end portion 44 is appropriately determined in consideration of required spring characteristics, load resistance characteristics, relative displacement characteristics between the inner mounting member and the outer mounting member at the time of mounting, and the like. However, it is not limited at all. Specifically, a plurality of such hollow holes are formed by dividing the hollow hole into a plurality of pieces and extending in parallel with each other, a plurality of hollow holes extending in the horizontal direction, and a plurality of each in the vertical and horizontal directions. It is also possible to form a hollow hole extending in a lattice shape. Further, the length of the lightening hole 46 in the base end portion 44 does not reach the lower end surface from the upper end surface of the base end portion 44 downward (preferably the length extending downward from the center in the vertical direction). It is also possible to form a non-through hole in the base end portion 44, for example.

  In addition, it is possible to adjust the spring characteristics by providing two or more pairs of rubber elastic bodies 16, 16 that make a pair on the left and right sides. In this case, the base end portion 44 is made common so that only the main body portion 42 is provided. It is also possible to form a plurality (so as to extend between the inner mounting member 12 and the outer mounting member 14).

  The specific shapes of the inner mounting member 12 and the outer mounting member 14 are appropriately changed depending on the exhaust pipe, the mounting structure to the vehicle body, and the like. For example, in addition to the shaft shape illustrated as the inner mounting member, a block shape A cylindrical shape or the like can be employed, and a pair of opposing plate portions in the outer mounting member can be configured as independent members.

10: Muffler support, 12: Inner mounting member, 14: Outer mounting member, 16: Rubber elastic body, 18: Exhaust pipe, 20: Vehicle body, 30: Bottom plate portion, 32: Side plate portion (opposite plate portion), 44: Base End part, 46: Meat hole

Claims (6)

An inner mounting member attached to the exhaust pipe is disposed between a pair of opposing plate portions provided on an outer mounting member attached to the vehicle body, and extends from the inner mounting member toward the pair of opposing plate portions on both sides. In the muffler support provided with a pair of rubber elastic bodies,
In the pair of rubber elastic bodies, an orthogonal cross-sectional area with respect to the extending direction from the inner mounting member to the counter plate portion is increased at a fixing side end portion to the counter plate portion to form a thick base end portion. A muffler support characterized in that a hollow hole extending along the opposing plate portion is provided inside the base end portion.   The muffler support according to claim 1, wherein the lightening hole in the base end portion is formed through the inside of the base end portion.   The muffler support according to claim 2, wherein the through hole is formed so as to penetrate in a vertical direction in a mounted state that is a main input direction of vibration.   The muffler support according to claim 3, wherein a width dimension of the hollow hole is larger than a width dimension in an intermediate portion in the extending direction of the rubber elastic body. While the inner mounting member has a linearly extending shaft shape, the outer mounting member has a groove shape in which a pair of side plate portions are integrally formed on both sides of the bottom plate portion,
The pair of inner mounting members disposed in a groove direction of the outer mounting member in the groove direction and extending from the inner mounting member toward both sides toward the pair of side plate portions as the pair of opposing plate portions. The inner mounting member and the outer mounting member are elastically connected by the rubber elastic body,
The pair of rubber elastic bodies extends obliquely downward from the inner mounting member toward the pair of side plate portions of the outer mounting member in a vertical direction in a mounting state as a main input direction of vibration. The muffler support according to any one of 1 to 4.   Any one of Claims 1-5 in which the said hollow hole in the said base end part is crushed at least in part in the mounting state in which the support load of the said exhaust pipe is exerted between the said inner attachment member and the said outer attachment member. The muffler support described in the section.

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