JP6115821B2 - Engine mount bracket mounting structure - Google Patents

Description

  The present invention relates to an engine mount bracket mounting structure for fixing an engine mount of a vehicle to a side member.

  Conventionally, when an engine mount of a vehicle is fixed to an apron side member, an engine mount bracket is disposed on an upper surface portion of the apron side member and an inner side surface portion in the vehicle width direction. In this state, the apron side member and the engine mount bracket are connected to each other. A structure is employed in which the engine mount is fixed to the engine mount bracket by being joined and fastened at four points (for example, Patent Documents 1 and 2).

By the way, the engine mount has an engine swing (when the engine speed changes, when the engine load changes, when the engine is started) and when the vehicle is driven, the engine vibration (piston, crank) High-frequency vibration of the engine due to impact vibration such as reciprocating / rotating motion of combustion and combustion), engine weight at the time of turning of the vehicle, and the like are applied, and these loads are transmitted to the apron side member and absorbed by the vehicle body.
For this reason, it is necessary to support the engine in a wide range from low frequency to high frequency and from a small displacement to a large displacement, and it is necessary to ensure the joining rigidity between the apron side member and the engine mount. In addition, it is preferable that the apron side member be deformed evenly with respect to a large load from the front of the vehicle. However, when a large bracket is disposed in a wide range in the vehicle front-rear direction, the bracket is not deformed, and the load Can no longer be absorbed. In addition, the front and rear of the portion with increased rigidity are relatively fragile portions, and there is a concern that the load is concentrated and deformation is increased. Further, since the apron side member obtains the necessary rigidity as the front part of the vehicle body by joining with other members (for example, a fender apron panel, an apron extension panel), it is required to ensure the joining rigidity. .

JP 2012-121522 A JP-A-1-36583

  However, in the above-described conventional structure, since the engine mount bracket is joined to the inner side surface portion of the apron side member by welding, the load is concentrated, and the inner side surface portion of the apron side member is recessed toward the outside of the vehicle. There was a possibility that a vibration would occur. In addition, there is a problem that the strength of the apron side member is reduced by such vibration, and the apron side member is cracked.

  The present invention has been made in view of such a situation, and an object of the present invention is to secure the joint rigidity between the side member and the engine mount bracket, and share the load of the engine mount in the entire vehicle vertical direction of the side member. An object of the present invention is to provide an engine mount bracket mounting structure capable of effectively suppressing vibration generated in a side member.

  In order to solve the above-described problems of the related art, the present invention is provided with a side member that extends in the vehicle front-rear direction and has at least an upper wall surface and an inner side wall surface. In the mounting structure of the engine mount bracket that has a fastening point with the engine mount on the upper surface and the side surface, the engine mount bracket is provided from the upper part to the lower part of the inner side wall surface of the side member, and the engine mount bracket The joint points of the side members with the inner side wall surface of the side member are arranged in two rows in the vehicle vertical direction with a space in the vehicle front-rear direction, and the distance between the joint points in the vehicle front-rear direction is from the upper side. It arrange | positions so that it may become narrow toward the lower side.

  In the present invention, the width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side, and the side member is disposed at the front and rear end portions of the side surface of the engine mount bracket. The joint flange and the joint point are arranged in two rows in the vehicle vertical direction with an interval in the vehicle front-rear direction, and the joint flange and the joint point in the vehicle front-rear direction are arranged. The intervals are arranged so as to become narrower from the upper side to the lower side.

  Furthermore, in the present invention, the width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so that the lower side is smaller than the height position of the fastening point with the engine mount.

  In the present invention, at the center of the side surface of the engine mount bracket, a convex portion protruding toward the inside of the vehicle is provided along the vehicle vertical direction, and the convex portion is fastened to the engine mount. A dotted point is provided, and the width of the convex portion in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side.

  In the present invention, the inner side wall surface of the side member is provided with a recess or a step extending in the vehicle front-rear direction, and the tightening point with the engine mount is the recess or the step in the vehicle vertical direction. It is arranged equal to or above the height position.

  Further, in the present invention, the side member is formed in a quadrangular cross section when viewed from the front of the vehicle using two components, and the two components are joined by a flange at a lower end portion located on the vehicle inner side, The lower part of the engine mount bracket is joined together by a flange at the lower end portion of the two components.

  And in this invention, the said side member is formed in the cross-sectional square shape by the vehicle front view using two components, and the said two components are located in the flange of the lower end part located in a vehicle inside, and a vehicle outer side. The upper part of the side member is joined to a vehicle body frame component disposed on the upper part of the side member, and the upper part of the engine mount bracket is an inner side wall surface of the side member. And the upper wall surface, the flange of the upper end portion of the side member, and the body frame part.

  In the present invention, the lower portion of the engine mount bracket is formed on an inclined surface that is inclined outward in the vehicle width direction.

  Furthermore, in the present invention, an engine mount bracket having the same form as the engine mount bracket is disposed on either the front or rear of the vehicle, and one engine mount is suspended by these two engine mount brackets.

  As described above, the mounting structure of the engine mount bracket according to the present invention includes a side member extending in the vehicle front-rear direction and having at least an upper wall surface and an inner side wall surface, and the inner wall surface from the upper wall surface of the side member. An engine mount bracket having a fastening point with an engine mount on an upper surface and a side surface, wherein the engine mount bracket is provided from an upper part to a lower part of an inner side wall surface of the side member, The joint points of the side members with the inner side wall surface of the side member are arranged in two rows in the vehicle vertical direction with a space in the vehicle front-rear direction. Since it is arranged so as to narrow toward the side, the load inside the engine mount bracket The flow can tell to focus downward to the lower portion of the side member can be shared load. Therefore, according to the mounting structure of the present invention, it becomes possible to share the load of the engine mount in the entire vehicle vertical direction of the side member, and vibration suppression performance and strength performance can be improved.

  In the present invention, the width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side, and the front and rear end portions of the side surface of the engine mount bracket are connected to the side member. A joint flange is provided, and the joint flange and the joint point are arranged in two rows in the vehicle vertical direction with a space in the vehicle front-rear direction, and the distance between the joint flange and the joint point in the vehicle front-rear direction is Because it is arranged so that it narrows from the upper side to the lower side, it can suppress vibration more effectively than extending the shape of the engine mount bracket straight, and the size of the engine mount bracket itself Can be reduced, and the weight can be reduced.

  In the present invention, the width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so that the lower side is lower than the height position of the fastening point with the engine mount. It can be efficiently distributed to engine mount brackets and side members.

  Further, in the present invention, a convex portion that protrudes toward the inside of the vehicle is provided at the center of the side surface of the engine mount bracket along the vehicle vertical direction, and the convex portion is tightened with the engine mount. In addition to being provided with a dot, the width of the convex portion in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side. Rigidity can be ensured. In addition, the load of the engine mount can be received by the convex portion of the engine mount bracket, and the received load can be guided to the lower side of the engine mount bracket and distributed to the side members.

  And in this invention, the recessed part or level | step difference extended in the vehicle front-back direction is provided in the inner side wall surface of the said side member, and the fastening point with the said engine mount is the said recessed part or said level | step difference in the vehicle up-down direction. Because it is arranged at the same height as or above the height position, it can exert the effect of suppressing the vibration that the inner side wall surface of the side member that is caused by the load of the engine mount becomes concave in the vehicle outer direction, and the engine mount by the load of the engine mount Deformation of the bracket and the side member can be reduced.

  Further, in the present invention, the side member is formed into a quadrangular cross section when viewed from the front of the vehicle using two components, and the two components are joined by a flange at a lower end portion located on the vehicle inner side, Since the lower part of the engine mount bracket is joined together by the flanges at the lower ends of the two components, the production process is simplified by using the side member flange to join the lower part of the side member and the engine mount bracket. Therefore, a special joining shape is not required, and weight reduction and cost reduction can be achieved.

  Furthermore, in the present invention, the side member is formed in a quadrangular cross section when viewed from the front of the vehicle using two components, and the two components are positioned on the flange on the lower end portion located on the vehicle inner side and on the vehicle outer side. The upper part of the side member is joined to a vehicle body frame component disposed on the upper part of the side member, and the upper part of the engine mount bracket is an inner side wall surface of the side member. And the upper wall surface, the flange of the upper end portion of the side member, and the vehicle body frame part, so that the load of the engine mount bracket receiving the load of the engine mount is placed not only on the side member but also on the upper side member It is also possible to disperse the body frame parts. Therefore, according to the mounting structure of the present invention, it is possible to secure the joint rigidity between the side member and the superstructure of the vehicle body frame, to suppress the vibration generated by the load of the engine mount, and to apply the external load from the front of the vehicle to the vehicle structure. Can be dispersed and absorbed.

  In the present invention, since the lower portion of the engine mount bracket is formed on an inclined surface that is inclined outward in the vehicle width direction, the rigidity of the tightening surface of the engine mount is improved and the load on the engine mount is reduced. Can be effectively suppressed by the engine mount bracket.

  In the present invention, the engine mount bracket having the same form as the engine mount bracket is disposed on either the front or rear of the vehicle, and one engine mount is suspended by these two engine mount brackets. It can be fastened to the engine mount bracket at the upper and lower four points, and can support the engine stably and can handle loads in any direction. It can be deformed without being constrained and can absorb the load. On the other hand, even if the rigidity of the mounting portion of the side member is increased by attaching a highly rigid engine mount, the two engine mount brackets are spaced apart from each other. It is possible.

It is a perspective view which shows the engine mount bracket attached to the apron side member by the attachment structure which concerns on embodiment of this invention, and its periphery. It is the perspective view which looked at the vicinity of the engine mount bracket in FIG. 1 from the inner side of the vehicle width direction. It is a perspective view which shows the vicinity of the engine mount bracket in FIG. 1 in the state in which the engine mount was attached. FIG. 2 is a front view of the vicinity of an engine mount bracket in FIG. 1 viewed from the inside in the vehicle width direction. It is the sectional view on the AA line in FIG.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
1 to 5 show a mounting structure for an engine mount bracket according to an embodiment of the present invention.

  As shown in FIGS. 1 to 5, the vehicle body front portion 1 to which the mounting structure of the engine mount bracket according to the embodiment of the present invention is applied has left and right apron sides extending along the vehicle front-rear direction. A member (side member) 2 is provided, and a side brace portion 4 of a support member 3 having a frame structure is suspended from a front end portion of the apron side member 2. In addition, an apron extension panel 5 and a fender apron panel 6 are provided on the apron side member 2, which are vehicle body frame parts that expand in the vehicle vertical direction and the vehicle longitudinal direction. In the figure, the arrow D direction indicates the vehicle lower side, the arrow F direction indicates the vehicle front, the arrow I direction indicates the vehicle inner side direction, the arrow O direction indicates the vehicle outer side direction, and the arrow U direction indicates the vehicle upper side.

  As shown in FIG. 5, the apron side member 2 of the present embodiment is configured using two component parts 21 and 22 and is formed in a quadrangular cross section when viewed from the front of the vehicle, and includes at least the upper wall surface 2 a and the inner side. Wall surface 2b. For this reason, the two component parts 21 and 22 are bent in a substantially crank shape in cross section, and the flanges 21a and 22a at the lower end portions located inside the vehicle are overlapped and joined by spot welding or the like. At the same time, the flanges 21b and 22b at the respective upper end portions located outside the vehicle are overlapped and joined by spot welding or the like. That is, the flanges 21a and 22a at the lower end portion and the flanges 21b and 22b at the upper end portion are joined in a state of being arranged on a diagonal line. Moreover, the flanges 21b and 22b at the upper end portion of the apron side member 2 are joined to the lower portions of the apron extension panel 5 and the fender apron panel 6 by spot welding or the like.

  Moreover, as shown in FIGS. 1-5, the engine mount bracket 8 which installs and fixes the engine mount 7 is attached to the apron side member 2 of this embodiment from the upper wall surface 2a to the inner side wall surface 2b. Yes. For this reason, the engine mount bracket 8 is bent and formed in a substantially long crank section extending in the vertical direction of the vehicle, and has tightening points B1 and B2 with the engine mount 7 on the upper surface 8a and the side surface 8b. doing. Bolt holes 10 and 11 for inserting the shaft portions of the tightening bolts 9 are formed in these tightening points B1 and B2, respectively, and welding to be screwed with the tightening bolts 9 on the back surface side of the upper surface 8a. A nut 12 is fixed in correspondence with the bolt hole 10. Further, a through hole 13 through which the shaft portion of the tightening bolt 9 is inserted is formed in the inner side wall surface 2b of the apron side member 2 so as to correspond to the bolt hole 11 of the engine mount bracket 8, and the inner side wall surface 2b. A welding nut 12 that is screwed into the fastening bolt 9 is fixed to the back surface side of the steel plate.

  The upper surface 8a and the side surface 8b of the engine mount bracket 8 of the present embodiment are formed to be bent along the shape of the apron extension panel 5 and the upper wall surface 2a and the inner side wall surface 2b of the apron side member 2, and the side surface 8b is formed from the apron. The side member 2 is provided from the upper side to the lower side of the inner side wall surface 2b. As shown in FIG. 2, the joint points Wb of the side surface 8b of the engine mount bracket 8 with the inner side wall surface 2b of the apron side member 2 are arranged in two rows in the vehicle vertical direction with a space in the vehicle longitudinal direction. A plurality of junction points Wb in each row are provided at intervals in the vehicle vertical direction. In addition, the distance between the two rows of joint points Wb in the vehicle front-rear direction is arranged to become narrower from the upper side to the lower side, and the load flow in the engine mount bracket 8 is concentrated downward. The apron side member 2 is configured so that a load is also distributed to the lower part of the apron side member 2. Note that a joint point Wa with the upper wall surface 2a of the apron side member 2 is provided at a position corresponding to the joint point Wb at the upper part of the side surface 8b of the engine mount bracket 8.

Moreover, as shown in FIGS. 1-4, the width | variety of the side surface 8b of the engine mount bracket 8 which concerns on this embodiment is formed so that it may become small toward upper side from the upper side. Yes. Front and rear joining flanges 81 and 82 for joining the upper wall surface 2a and the inner side wall surface 2b of the apron side member 2 are provided at the front and rear ends of the side surface 8b of the engine mount bracket 8, respectively. These front and rear joint flanges 81 and 82 and joint points Wa and Wb are arranged in two rows in the vehicle vertical direction with a space in the vehicle front and rear direction, and the front and rear joint flanges 81 and 82 and the vehicles at the joint points Wa and Wb are arranged. The space | interval of the front-back direction is arrange | positioned so that it may become narrower toward the lower side from the upper side. By forming and arranging the front and rear joining flanges 81 and 82 and the joining points Wa and Wb in such a positional relationship, the load of the engine mount bracket 8 is straightened and the joining point is placed compared to the case where the joining points are placed. The engine mount bracket 8 can be reduced in size and weight by greatly suppressing vibration caused by the above.
In addition, the width in the vehicle front-rear direction of the side surface 8b of the engine mount bracket 8 is formed so that the lower side is smaller than the height position of the tightening point B2 with the engine mount 7. Thereby, the load of the engine mount 7 is smoothly distributed to the engine mount bracket 8 and the apron side member 2.

Further, at the center of the side surface 8b of the engine mount bracket 8, as shown in FIGS. 2 to 4, a convex portion 83 protruding toward the vehicle inner side has peripheral front and rear joining flanges 81 and 82 and an upper joining flange 84. The convex portion 83 is provided with vertical fastening points B1 and B2 with the engine mount 7 so as to be left. The width of the convex portion 83 in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side, and the protruding amount of the convex portion 83 is larger on the upper side than on the lower side. It is formed to become. The upper joint flange 84 is provided with a joint point Wc with the apron extension panel 5.
By providing such a convex portion 83, the engine mount bracket 8 has a three-dimensional structure as a whole, and the engine mount bracket 8 itself has a necessary rigidity. Further, the convex portion 83 of the engine mount bracket 8 receives the load of the engine mount 7 and guides the received load to the lower side of the engine mount bracket 8 so as to be distributed to the apron side member 2.

  On the other hand, the inner side wall surface 2b of the apron side member 2 is provided with a recess (or a step) 23 extending in the vehicle longitudinal direction, as shown in FIGS. The lower tightening point B2 with the engine mount 7 is disposed at or above the height position of the recess 23 in the vehicle vertical direction. Such a recess 23 is provided in order to suppress a vibration that is a recess in the vehicle outer side direction of the inner side wall surface 2b of the apron side member 2 caused by a load from the engine mount 7.

As shown in FIGS. 1 to 5, the lower part of the engine mount bracket 8 of the present embodiment is configured such that the front and rear joining flanges 81 and 82 are spot welded together with the flanges 21 a and 22 a at the lower end portions of the two components 21 and 22. It is attached to the lower part of the apron side member 2 by joining together. That is, by using the flanges 21a and 22a of the apron side member 2 to join the front and rear joining flanges 81 and 82 and the flanges 21a and 22a of the component parts 21 and 22 together, the apron side member 2 and the engine mount bracket 8 are joined together. The production process for joining the lower part of the metal is simplified, and the necessity for providing a special joining shape is eliminated.
Further, the upper part of the engine mount bracket 8 includes the corresponding front and rear joining flanges 81 and 82 and the upper joining flange 84, the inner side wall surface 2b and the upper wall surface 2a of the apron side member 2, and the component parts 21 constituting the apron side member 2. The apron side member 2 and the apron extension panel 5 are attached to each other by joining the flanges 21b and 22b at the upper end portion 22 and the apron extension panel 5 by spot welding or the like. In other words, the load distribution effect of the engine mount bracket 8 that receives the load of the engine mount 7 extends not only to the apron side member 2 but also to the apron extension panel 5 of the vehicle body skeleton part disposed on the apron side member 2. ing. Moreover, the joining rigidity between the apron side member 2 and the apron extension panel 5 is ensured, the vibration generated by the load of the engine mount 7 is suppressed, and the external load from the front of the vehicle is distributed throughout the vehicle body structure. It is configured.

  Furthermore, as shown in FIG. 5, the lower portion of the side surface 8b of the engine mount bracket 8 of the present embodiment extends downward in the vehicle (arrow D direction) while inclining toward the outside in the vehicle width direction (arrow O direction). It is formed on the inclined surface. By this inclined surface, the rigidity of the tightening surface of the engine mount 7 is improved, and the vibration generated by the load of the engine mount 7 by the engine mount bracket 8 is effectively suppressed.

In the mounting structure of the present embodiment, as shown in FIGS. 1 to 4, a separate engine mount bracket 8 </ b> A having the same form as the engine mount bracket 8 is provided on the vehicle front side (arrow) with respect to the engine mount bracket 8. F direction) are arranged side by side at a predetermined interval, and one engine mount 7 is suspended by these two engine mount brackets 8 and 8A. For this reason, the engine mount 7 is bent and formed in an L shape so as to be along the upper surface 8a and the side surface 8b of the engine mount brackets 8 and 8A. A mounting hole (not shown) is provided through which the shaft portion is inserted. Since the engine mount bracket 8A on the vehicle front side has the same form as the engine mount bracket 8 on the vehicle rear side, each component is given the same reference numeral and description thereof is omitted.
That is, the engine mount 7 is fastened to the engine mount brackets 8 and 8A at four fastening points B1 and B2 positioned in the vertical and front and rear directions, and can handle loads in any direction. The apron side member 2 is not constrained in the installation area of the mount 7, and the load can be absorbed by local deformation of the apron side member 2 between the engine mount brackets 8 and 8A.

In order to attach the engine mount brackets 8 and 8A and the engine mount 7 by the mounting structure of the embodiment of the present invention, the flanges 21a, 22a, 21b and 22b of the two component parts 21 and 22 are joined in advance by spot welding or the like. Then, the apron side member 2 is assembled. Next, the engine mount bracket 8 is placed on the upper wall surface 2 a of the apron side member 2, and the bolt holes 11 and the through holes 13 are positioned, and the joint flanges 81, 82, 84 of the engine mount bracket 8 and the apron side member 2 are The wall surface 2a and the inner side wall surface 2b and the lower part of the apron extension panel 5 are overlapped. In this state, if spot welding or the like is performed at predetermined locations of the joining flanges 81, 82, 84, the engine mount bracket 8 is joined and attached to the apron side member 2 and the apron extension panel 5 at the joining points Wa, Wb, Wc. (See FIG. 1, FIG. 2, FIG. 4 and FIG. 5). Further, the engine mount bracket 8A on the front side of the vehicle is attached to predetermined positions of the apron side member 2 and the apron extension panel 5 if spot welding or the like is performed in the same procedure.
Then, while positioning the mounting hole (not shown) in accordance with the bolt holes 10 and 11 of the tightening points B1 and B2, the engine mount 7 is installed on the engine mount brackets 8 and 8A, and the tightening bolt 9 is mounted. If screwed into the welding nut 12 via a hole (not shown), bolt holes 10 and 11 and the through hole 13 and tightened, the engine mount 7 is fixed at four upper and lower tightening points B1 and B2. It will be attached to the engine mount brackets 8 and 8A (see FIG. 3).

  Thus, in the mounting structure of the engine mount bracket 8 according to the embodiment of the present invention, the engine mount bracket 8 is provided from the upper part to the lower part of the inner side wall surface 2b of the apron side member 2, and the side surface 8b of the engine mount bracket 8 is provided. Joint points Wa and Wb with the inner side wall surface 2b of the apron side member 2 are arranged in two rows in the vehicle vertical direction at intervals in the vehicle longitudinal direction, and the joint points Wa and Wb in the vehicle longitudinal direction are arranged in the vehicle longitudinal direction. Since the gap is arranged so as to become narrower from the upper side to the lower side, the load of the engine mount 7 can be transmitted and concentrated in the engine mount bracket 8, and this load can be concentrated. Can be absorbed by the entire vehicle in the vertical direction, and the apron side member 2 It is possible to suppress the vibration of raw effectively.

While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.
For example, although the separate engine mount bracket 8A in the above-described embodiment is disposed on the vehicle front side with respect to the engine mount bracket 8, the engine mount bracket 8 may be separated from the engine mount bracket 8 depending on the applicable vehicle type, installation space, and the like. It may be arranged on the vehicle rear side. Further, the upper portion of the engine mount bracket 8 may be joined to the fender apron panel 6 instead of the apron extension panel 5.

1 Body front 2 Apron side member (side member)
2a Upper wall surface 2b Inner side wall surface 5 Apron extension panel (body frame parts)
6 Fender apron panel (body frame parts)
7 Engine mount 8 Engine mount bracket 8A Separate engine mount bracket 8a Upper surface 8b Side surface 9 Tightening bolt 10, 11 Bolt hole 12 Weld nut 13 Through hole 21, 22 Component parts 21a, 22a Lower end flange 21b, 22b Upper end Flange 23 Concave part 81, 82, 84 Joint flange 83 Convex part B1, B2 Tightening point Wa, Wb, Wc Joint point

Claims (9)

A side member extending in the longitudinal direction of the vehicle and having at least an upper wall surface and an inner side wall surface is provided, and is attached from the upper wall surface to the inner side wall surface of the side member. In the mounting structure of the engine mount bracket having
The engine mount bracket is provided from the upper part to the lower part of the inner side wall surface of the side member, and a joint point between the side surface of the engine mount bracket and the inner side wall surface of the side member is spaced in the vehicle front-rear direction. A mounting structure for an engine mount bracket, wherein the mounting structure is arranged in two rows in the vertical direction, and the distance between the junction points in the vehicle longitudinal direction is narrowed from the upper side to the lower side.   The width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side, and a joint flange with the side member is provided at the front and rear end portions of the side surface of the engine mount bracket. The joint flange and the joint point are arranged in two rows in the vehicle vertical direction with an interval in the vehicle front-rear direction, and the distance between the joint flange and the joint point in the vehicle front-rear direction is lower from the upper side. 2. The mounting structure for an engine mount bracket according to claim 1, wherein the mounting structure is narrower toward the side.   3. The engine mount according to claim 2, wherein a width of the side surface of the engine mount bracket in the vehicle front-rear direction is formed so that a lower side is smaller than a height position of a fastening point with the engine mount. Bracket mounting structure.   At the center of the side surface of the engine mount bracket, a convex portion that protrudes toward the inside of the vehicle is provided along the vertical direction of the vehicle, and a fastening point with the engine mount is provided on the convex portion. The mounting structure for an engine mount bracket according to claim 2 or 3, wherein a width of the convex portion in the vehicle front-rear direction is formed so as to decrease from the upper side to the lower side.   A recess or a step extending in the vehicle front-rear direction is provided on the inner side wall surface of the side member, and the tightening point with the engine mount is equal to the height position of the recess or the step in the vehicle vertical direction. The mounting structure for an engine mount bracket according to any one of claims 1 to 4, wherein the mounting structure is disposed above.   The side member is formed to have a quadrangular cross section when viewed from the front of the vehicle using two components, and the two components are joined by a flange at a lower end portion located inside the vehicle, and a lower portion of the engine mount bracket is The engine mount bracket mounting structure according to any one of claims 1 to 4, wherein the two component parts are joined together by a flange at a lower end portion thereof.   The side member is formed in a quadrangular cross section when viewed from the front of the vehicle using two components, and the two components are formed by a flange at a lower end portion located inside the vehicle and a flange at an upper end portion located outside the vehicle. The upper part of the side member is joined to a vehicle body frame component disposed on the upper part of the side member, and the upper part of the engine mount bracket is composed of an inner side wall surface and an upper wall surface of the side member, The mounting structure for an engine mount bracket according to claim 6, wherein the mounting structure is joined to a flange at an upper end portion of the member and each of the body frame parts.   The engine mount bracket mounting structure according to any one of claims 1 to 7, wherein a lower portion of the engine mount bracket is formed on an inclined surface that is inclined toward an outer side in a vehicle width direction.   9. The engine mount bracket of the same form as the engine mount bracket is disposed on either the front or rear of the vehicle, and one engine mount is suspended by these two engine mount brackets. The mounting structure of the engine mount bracket described in the above.

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