JP2020045020A - Engine mount structure - Google Patents

Abstract

To make it hard for an engine mount to be broken by a load operating in a vehicle height direction in an engine mount structure.SOLUTION: An engine mount structure S has an engine mount 3 which has a first plate member 31 connected to a side frame 1, a second plate member 32 connected to an engine 2 and an elastic member 33 installed between the first plate member 31 and the second plate member 32 and in which the first plate member 31 is provided in a tilted manner so that it is positioned outside in a vehicle width direction of the vehicle of the second plate member 32. The first plate member 31 is provided with a first lower projection part 312 at a lower end and with a first upper projection part 313 at an upper end. In the second plate member 32, a second lower projection part 322 where at least a part of a region is positioned below the first lower projection part 312 is provided at a lower end, and a second upper projection part 325 where at least a part of a region is positioned below the first upper projection part 313 is provided at an upper end.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an engine mount structure.

  Conventionally, vehicles have been provided with an engine mount structure. Patent Literature 1 discloses an upper plate member having bent portions formed at both ends, a lower plate member having bent portions formed at both ends, and a lower plate member provided between the upper plate member and the lower plate member. In an engine mountain having an elastic member, the plurality of bent portions formed on the upper plate member and the plurality of bent portions formed on the lower plate member are opposite to each other, and are opposed to each other. Disposed structures are disclosed.

JP-A-59-183134

  In a vehicle having an engine mount having an upper plate member, a lower plate member, and an elastic member provided between the upper plate member and the lower plate member, for example, when the vehicle is running, the height direction of the vehicle with respect to the engine mount Large load may be applied to the In this case, there has been a problem that the engine mount may be broken and the performance of the engine mount may be impaired.

  Therefore, the present invention has been made in view of these points, and an object of the present invention is to provide an engine mount structure in which the engine mount is hardly broken by a load acting in the height direction of the vehicle.

  In the first aspect of the present invention, a plurality of side frames extending in a front-rear direction of the vehicle, and an engine of the vehicle provided between the plurality of side frames in a vehicle width direction of the vehicle, A first plate member connected to the side frame; a second plate member connected to the engine; and an elastic member provided between the first plate member and the second plate member. And an engine mount that is provided so as to be inclined such that the first plate member is located outside of the second plate member in the vehicle width direction of the vehicle, and the first plate member includes: A first lower protrusion is provided at a lower end, a first upper protrusion is provided at an upper end, and at least a part of the second plate member is located below the first lower protrusion. A second lower protrusion is provided at the lower end. And which provides engine mount structure, wherein a second upper protrusion least a portion of the region is located below the first upper protrusion is provided at the upper end.

  In addition, the first plate member further includes a first flat plate portion that is in contact with the elastic member, and the first lower protruding portion extends inward in a vehicle width direction of the vehicle from a lower end of the first flat plate portion. A first region extending upward from an upper end of the first flat plate portion in a height direction of the vehicle, and a first region extending from an upper end of the first region. A second region extending inward in the vehicle width direction of the vehicle, wherein the second plate member further includes a second flat plate portion in contact with the elastic member; The lower protruding portion extends from a lower end of the second flat plate portion downward in a height direction of the vehicle, and extends from a lower end of the third region outward in a vehicle width direction of the vehicle. And a fourth region that extends. From the upper end of the flat plate portion may extend toward the outer side in the vehicle width direction of the vehicle.

  A side frame side bracket for connecting the engine mount to the side frame, the bracket being provided between the engine mount and the side frame, and being provided between the engine mount and the engine; And an engine-side bracket for connecting the engine mount to the engine, wherein the first plate member extends perpendicular to the first flat plate portion, and It further has a first fastening portion in which a first nut is tightened while being inserted into a first hole formed in the bracket, and the second plate member extends perpendicular to the second flat plate portion. And a second fastening portion in which a second nut is tightened while being inserted into a second hole formed in the engine-side bracket. It can have.

  ADVANTAGE OF THE INVENTION According to this invention, in an engine mount structure, there exists an effect that an engine mount becomes difficult to be broken with respect to the load which acts in the height direction of a vehicle.

1 shows a state in which an engine mount structure according to the present embodiment is provided in a vehicle. It is XX sectional drawing of FIG. 1 shows a structure of an engine mount structure according to the present embodiment. 4 shows a state where members constituting the engine mount structure according to the present embodiment are separated. 1 shows a structure of an engine mount according to the present embodiment. 7 shows an example of a state in which an engine mount is broken as a comparative example.

<The present embodiment>
[Peripheral configuration of engine mount structure S]
FIG. 1 is a diagram illustrating a state in which an engine mount structure S according to the present embodiment is provided in a vehicle. FIG. 2 is a sectional view taken along line XX of FIG. FIG. 3 is a diagram showing the structure of the engine mount structure S according to the present embodiment.

  FIG. 4 is a view showing a state where members constituting the engine mount structure S according to the present embodiment are separated. FIG. 4A is a diagram illustrating a state where members constituting the engine mount structure S according to the present embodiment are separated. FIG. 4B is a diagram showing a structure of the engine-side bracket 5 fixed to the engine 2 as viewed from above in the height direction of the vehicle. FIG. 4C is a diagram showing a structure of the engine-side bracket 5 fixed to the engine 2 as viewed from the rear in the front-rear direction of the vehicle. FIG. 5 is a diagram illustrating the structure of the engine mount 3 according to the present embodiment.

  The vehicle is a cab-over type vehicle, for example, a truck. The vehicle has an engine mount structure S. The engine mount structure S is a structure that supports the engine 2 on the side frame 1. The engine mount structure S has a side frame 1, an engine 2, an engine mount 3, a side frame side bracket 4, and an engine side bracket 5.

  The side frame 1 is a member extending in the front-rear direction of the vehicle. The side frame 1 has, for example, a U-shaped cross section. Two side frames 1 are provided in parallel. Engine 2 generates power for driving the vehicle. The engine 2 is, for example, a gasoline engine or a diesel engine. The engine 2 supplies fuel (for example, gasoline or light oil) and air to burn and generate power and generate exhaust gas. The engine 2 is provided between the plurality of side frames 1 in the vehicle width direction.

  The engine mount 3 supports the engine 2 on the side frame 1. The engine mount 3 supports the weight of the engine 2 and, for example, reduces the transmission of the vibration of the engine 2 to the vehicle body and prevents the engine 2 from vibrating due to the vibration of the vehicle body due to the unevenness of the road surface during running of the vehicle. Or reduce it. The vehicle is provided with two engine mounts 3. Specifically, as shown in FIG. 2, the side frame 1 provided between the side frame 1 provided on the left side in the vehicle width direction of the vehicle and the engine 2 and the right side provided in the vehicle width direction of the vehicle. And the engine 2. Details of the engine mount 3 will be described later.

  The side frame-side bracket 4 is provided between the engine mount 3 and the side frame 1 and is a member for connecting the engine mount 3 to the side frame 1. The side frame side bracket 4 has a first bracket 41 and a second bracket 42. The first bracket 41 has a U-shaped cross section, for example, and is fixed to the inside of the side frame 1 in the vehicle width direction of the vehicle. The first bracket 41 extends, for example, in the height direction of the vehicle, and includes a region where the second bracket 42 is fixed, a region where the first bracket 41 is in contact with the side frame 1 and is fixed to the side frame 1, Having.

  The second bracket 42 is fixed between the first bracket 41 and the engine mount 3. The second bracket 42 extends, for example, in the vehicle height direction, and is fixed to a region of the first bracket 41 extending in the vehicle height direction, and an engine mount 3 described later. And a region that is in contact with the first plate member 31 and is fixed to the first plate member 31. A first hole 421 is formed in a region of the second bracket 42 fixed to the first plate member 31. The first hole 421 is a hole into which a first fastening portion 316 of the first plate member 31 described later is inserted.

  The engine side bracket 5 is provided between the engine mount 3 and the engine 2 and is a member for connecting the engine mount 3 to the engine 2. The engine side bracket 5 is in contact with the engine 2 and fixed to the engine 2, and is in contact with a second plate member 32 of the engine mount 3 described below and fixed to the second plate member 32, Having. A second hole 51 is formed in a region of the engine-side bracket 5 fixed to the second plate member 32. The second hole 51 is a hole into which a second fastening portion 326 of the second plate member 32 described later is inserted.

[Structure of engine mount 3]
As shown in FIG. 3, the engine mount 3 has a first plate member 31, a second plate member 32, and an elastic member 33. The first plate member 31 is connected to the side frame 1. Specifically, the first plate member 31 is connected to the side frame 1 via the side frame side bracket 4. The second plate member 32 is connected to the engine 2. Specifically, the second plate member 32 is connected to the engine 2 via the engine-side bracket 5. Details of the first plate member 31 and the second plate member 32 will be described later.

  The elastic member 33 is provided between the first plate member 31 and the second plate member 32. The elastic member 33 is formed of, for example, rubber. The elastic member 33 and the first plate member 31, and the elastic member 33 and the second plate member 32 are, for example, vulcanized and bonded. The elastic member 33 expands and contracts when a load acts on the engine mount 3 in the height direction of the vehicle. The elastic member 33 is contracted, for example, when the length between the first plate member 31 and the second plate member 32 is reduced due to a load acting on the engine mount 3 in the height direction of the vehicle. When the length between the plate member 31 and the second plate member 32 increases, the length is extended. The details of the elastic member 33 will be described later.

  In the vehicle, the engine mount 3 having the first plate member 31, the second plate member 32, and the elastic member 33 provided between the first plate member 31 and the second plate member 32 is It is provided between the side frame 1. Therefore, by having the engine mount 3, the engine mount 3 absorbs at least one of the vibration of the engine 2 and the vibration of the side frame 1 that occur when the vehicle runs, for example, by the elastic member 33 of the engine mount 3. Vibration can be hardly transmitted between the second frame 2 and the side frame 1.

  As shown in FIG. 3, the engine mount 3 is provided to be inclined with respect to the height direction of the vehicle. Specifically, the engine mount 3 is provided to be inclined such that the first plate member 31 is located outside the second plate member 32 in the vehicle width direction. As described above, the engine mount 3 is provided to be inclined with respect to the height direction of the vehicle, so that it can cope with external forces acting in various directions such as the height direction of the vehicle and the width direction of the vehicle. can do.

[Structure of the first plate member 31 and the second plate member 32]
As shown in FIG. 5, the first plate member 31 has a first flat plate portion 311, a first lower protrusion 312, a first upper protrusion 313, and a first fastening portion 316. The first flat plate portion 311 has, for example, a flat plate shape, and is in contact with the elastic member 33. The first flat plate portion 311 extends orthogonally to the direction in which the engine mount 3 is inclined with respect to the height direction of the vehicle. The first lower protrusion 312 is provided at a lower end of the first plate member 31. Specifically, the first lower protrusion 312 extends inward from the lower end of the first flat plate portion 311 in the vehicle width direction. The first lower protrusion 312 has, for example, a flat plate shape, and extends in a horizontal direction orthogonal to the height direction of the vehicle.

  The first upper protrusion 313 is provided at an upper end of the first plate member 31. The first upper protrusion 313 has a first region 314 and a second region 315. The first region 314 is a region extending upward from the upper end of the first flat plate portion 311 in the height direction of the vehicle. The first region 314 has, for example, a flat plate shape and extends in the height direction of the vehicle. The second region 315 is a region extending from the upper end of the first region 314 inward in the vehicle width direction. The second region 315 has, for example, a flat plate shape, and extends in a horizontal direction orthogonal to the height direction of the vehicle.

  The first fastening portion 316 extends from the surface of the first plate member 31 on the side frame 1 side at right angles to the surface on the side frame 1 side. The first fastening portion 316 extends perpendicular to the first flat plate portion 311 and is inserted into a first hole 421 formed in the side frame-side bracket 4. The first fastening portion 316 has, for example, a substantially cylindrical shape, and a groove is formed on an outer surface of the first fastening portion 316, for example. The engine mount 3 tightens the first nut to the first fastening portion 316 in a state where the first fastening portion 316 is inserted into the first hole 421 formed in the side frame-side bracket 4, so that the side frame-side bracket 4 is connected.

  The second plate member 32 has a second flat plate part 321, a second lower protrusion part 322, a second upper protrusion part 325, and a second fastening part 326. The second flat plate portion 321 has, for example, a flat plate shape, and is in contact with the elastic member 33. The second flat plate portion 321 extends orthogonally to the direction in which the engine mount 3 is inclined with respect to the height direction of the vehicle. The second flat plate portion 321 has the same shape as the first flat plate portion 311 and is parallel to the first flat plate portion 311. The second lower protrusion 322 is provided at a lower end of the second plate member 32. At least a part of the second lower protrusion 322 is located below the first lower protrusion 312 in the vehicle height direction.

  The second lower protrusion 322 has a third region 323 and a fourth region 324. The third region 323 is a region extending downward from the lower end of the second flat plate portion 321 in the height direction of the vehicle. The third region 323 has, for example, a flat plate shape and extends in the height direction of the vehicle. The fourth region 324 is a region extending outward from the lower end of the third region 323 in the vehicle width direction. The fourth region 324 has, for example, a flat plate shape, and extends in a horizontal direction orthogonal to the height direction of the vehicle. The fourth region 324 is parallel to the first lower protrusion 312.

  At least a part of the second upper protrusion 325 is located below the first upper protrusion 313. Specifically, the second upper protruding portion 325 extends outward from the upper end of the second flat plate portion 321 in the vehicle width direction. The second upper protrusion 325 has, for example, a flat plate shape, and extends in a horizontal direction orthogonal to the height direction of the vehicle. The second upper protrusion 325 is, for example, parallel to the second region 315 of the first upper protrusion 313.

  The second fastening portion 326 extends from the surface of the second plate member 32 on the engine 2 side orthogonal to the surface on the engine 2 side. The second fastening portion 326 extends perpendicular to the second flat plate portion 321 and is inserted into a second hole 51 formed in the engine-side bracket 5. The second fastening portion 326 has, for example, a substantially cylindrical shape, and has, for example, a groove formed on an outer surface of the second fastening portion 326. The engine mount 3 is attached to the engine-side bracket 5 by tightening the second nut to the second fastening portion 326 in a state where the second fastening portion 326 is inserted into the second hole 51 formed in the engine-side bracket 5. It is connected.

  The elastic member 33 has a first elastic member 331, a second elastic member 332, and a third elastic member 333. The first elastic member 331 is provided between the first flat plate portion 311 of the first plate member 31 and the second flat plate portion 321 of the second plate member 32. The surface of the first elastic member 331 on the first flat plate portion 311 side is bonded to the first flat plate portion 311, and the surface of the first elastic member 331 on the second flat plate portion 321 side is bonded to the second flat plate portion 321. Have been.

  The second elastic member 332 is connected to, for example, the first elastic member 331, and is provided on the inner surface of the second lower protrusion 322 of the second plate member 32. Specifically, the second elastic member 332 is provided on the outer surface of the third lower region 323 of the second lower protrusion 322 in the vehicle width direction and the height of the vehicle in the fourth region 324 of the second lower protrusion 322. It is provided on the upper surface in the vertical direction. The surface of the second elastic member 332 on the side of the second lower protrusion 322 is bonded to the second lower protrusion 322.

  The third elastic member 333 is connected to, for example, the first elastic member 331, and is provided on the inner surface of the first upper protrusion 313 of the first plate member 31. The thickness of the third elastic member 333 is, for example, the same as the thickness of the second elastic member 332. Specifically, the third elastic member 333 is provided on the inner surface of the first upper protrusion 313 in the first region 314 in the vehicle width direction and the height of the first upper protrusion 313 in the second region 315 of the vehicle. It is provided on the lower surface in the vertical direction. The surface of the third elastic member 333 on the first upper protrusion 313 side is adhered to the first upper protrusion 313.

  The first lower protrusion 312 of the first plate member 31 and the second lower protrusion 322 and the second elastic member 332 of the second plate member 32 constitute a lower stopper. The first upper protrusion 313 and the third elastic member 333 of the first plate member 31 and the second upper protrusion 325 of the second plate member 32 constitute an upper stopper. Since the engine mount 3 has the lower stopper portion and the upper stopper portion, the engine mount 3 is not easily broken even when a load acts on the engine mount 3 in the vehicle height direction.

  In the engine mount 3, it is desirable that the lower stopper portion and the upper stopper portion simultaneously function when a load in the height direction of the vehicle acts. That is, in the engine mount 3, when a load in the height direction of the vehicle is applied, the first lower protrusion 312 is provided on the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322. It is desirable that the second upper protrusion 325 be configured to be in contact with the third elastic member 333 provided in the second region 315 of the first upper protrusion 313 at the same time as the contact.

  When the vehicle is not traveling, that is, when the engine 2 and the side frame 1 are not vibrating, the lower surface of the first lower protrusion 312 of the first plate member 31 and the second lower protrusion of the second plate member 32 For example, an interval of a first length L1 is provided between the upper surface of the second elastic member 332 provided in the fourth region 324 of the second member 322 in the height direction of the vehicle.

  Similarly, when the vehicle is not traveling, the lower surface of the third elastic member 333 provided in the second region 315 of the first upper protrusion 313 of the first plate member 31 and the second plate member 32 For example, an interval of a second length L2 is provided between the upper surface of the second upper protrusion 325 and the upper surface of the second upper protrusion 325 in the height direction of the vehicle. In the present embodiment, the second length L2 is, for example, the same length as the first length L1.

  In the engine mount structure S according to the present embodiment, for example, at least one of the engine 2 and the side frame 1 vibrates during traveling of the vehicle, so that a load acts on the engine mount 3 in the vehicle height direction. In this case, the elastic member 33 expands and contracts. When the first plate member 31 and the second plate member 32 move so as to reduce the length between the first plate member 31 and the second plate member 32 due to the vibration, the elastic member 33 is contracted. .

  Further, when the first plate member 31 and the second plate member 32 move so as to increase the length between the first plate member 31 and the second plate member 32 due to the vibration, the elastic member 33 becomes Stretched. Then, when the first plate member 31 and the second plate member 32 move in the direction in which the elastic member 33 is extended, the first lower protrusion 312 of the first plate member 31 moves to the second lower position of the second plate member 32. The second upper member 325 of the second plate member 32 contacts the second elastic member 332 provided in the fourth region 324 of the protrusion 322, and the second upper member 325 of the first upper member 313 of the first plate member 31. It contacts the third elastic member 333 provided in the region 315.

  Specifically, for example, the second plate member 32 moves a first length L1 upward with respect to the first plate member 31 in the vehicle height direction, or the first plate member 31 When the first length L1 is moved downward relative to the plate member 32 in the height direction of the vehicle, the first lower protrusion 312 is moved to the fourth region 324 of the second lower protrusion 322. The second upper protrusion 325 contacts the second elastic member 332 provided, and the second upper protrusion 325 contacts the third elastic member 333 provided in the second region 315 of the first upper protrusion 313.

  As described above, the first lower protrusion 312 of the first plate member 31 contacts the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322 of the second plate member 32, The second upper protrusion 325 of the plate member 32 is in contact with the third elastic member 333 provided in the second region 315 of the first upper protrusion 313 of the first plate member 31, so that the height in the vehicle height direction is increased. This prevents the elastic member 33 from being extended beyond the first length L1.

  As described above, when the load in the vehicle height direction acts on the engine mount 3, for example, the elastic member 33 has a predetermined length in the vehicle height direction, for example, the first length L1 or more. , Can be prevented from being stretched. As a result, when a load in the height direction of the vehicle is applied to the engine mount 3, for example, the elastic member 33 is stretched and broken, or the elastic member 33 is disconnected from the first plate member 31 and the second plate. The engine mount 3 can be prevented from being broken by being peeled off from the member 32.

FIG. 6 is a diagram illustrating an example of a state where an engine mount 900 as a comparative example is broken.
The engine mount 900 differs from the engine mount 3 in that it has a lower stopper but does not have an upper stopper. That is, the engine mount 900 is different from the engine mount 3 in that the engine mount 900 has a first plate member 31a instead of the first plate member 31 and a second plate member 32a instead of the second plate member 32. .

  Specifically, as compared to the engine mount 3, the engine mount 900 includes a first plate member 31 a having a first lower protrusion 312 provided at a lower end, and at least a part of the first lower protrusion 312. Although the second lower protrusion 322 located below the second lower member 322 has the second plate member 32a provided at the lower end, the first plate member 31a does not have the first upper protrusion 313, and the second lower member 322 has the second lower protrusion 322. The difference is that the plate member 32a does not have the second upper projection 325.

  When a large load acts on the engine mount 900 in the vehicle height direction, for example, the first plate member 31a moves downward with respect to the second plate member 32a in the vehicle height direction, The member 32a moves upward with respect to the first plate member 31a in the height direction of the vehicle. Then, for example, the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322 of the second plate member 32a is in contact with the first lower protrusion 312 of the first plate member 31a. When the first lower protrusion 312 is pushed upward by the second lower protrusion 322, the first lower protrusion 312 is directed upward in the vehicle height direction as indicated by an arrow in FIG. External force acts. As a result, the first plate member 31a is deformed as shown by a dotted line in FIG.

  On the other hand, the engine mount structure S has a lower stopper portion and an upper stopper portion. That is, in the engine mount structure S, the first plate member 31 provided with the first lower protrusion 312 at the lower end and the first upper protrusion 313 at the upper end, and at least a part of the first plate member 31 have the first A second lower projection 322 located below the lower projection 312 is provided at the lower end, and a second upper projection 325 at least partially located below the first upper projection 313 has an upper end. Has the second plate member 32 provided in the first position.

  Therefore, when a load in the vehicle height direction acts on the engine mount 3, for example, the first plate member 31 moves downward with respect to the second plate member 32 in the vehicle height direction. When the second plate member 32 moves upward with respect to the first plate member 31 in the height direction of the vehicle with respect to the first plate member 31, the first lower protrusion 312 of the first plate member 31 The second upper member 325 of the second plate member 32 contacts the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322 of the second plate member 32. It comes into contact with the third elastic member 333 provided in the second region 315 of the upper protrusion 313.

  The first lower protrusion 312 is pushed upward in the vehicle height direction by the second lower protrusion 322, and the first upper protrusion 313 is raised by the second upper protrusion 325. Pushed upward in the direction.

  Therefore, the engine mount 3 has the lower stopper portion and the upper stopper portion, so that the engine mount 3 has the lower stopper portion and does not have the upper stopper portion. 31 can be dispersed. As a result, the engine mount 3 is harder to break than the engine mount 900 when a load in the height direction of the vehicle is applied.

[Modification]
In the above embodiment, the lower surface of the first lower protrusion 312 of the first plate member 31 and the upper surface of the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322 of the second plate member 32 A first length L1 in the height direction of the vehicle, a lower surface of a third elastic member 333 provided in the second region 315 of the first upper protrusion 313 of the first plate member 31, and a second Although the example in which the second length L2 in the vehicle height direction between the upper surface of the second upper protrusion 325 of the plate member 32 and the second length L2 is the same is shown, the first length L1 and the second length L2 are the same. Is not limited to this. The first length L1 and the second length L2 may be, for example, different lengths.

  In the engine mount 3, for example, when a load is applied in the height direction of the vehicle, the first lower protrusion 312 of the first plate member 31 is moved to the fourth area of the second lower protrusion 322 of the second plate member 32. The first timing of contact with the second elastic member 332 provided on the first plate member 32 and the second upper protrusion 325 of the second plate member 32 are located in the second region 315 of the first upper protrusion 313 of the first plate member 31. The second timing of contact with the provided third elastic member 333 may be different.

  For example, when a load in the height direction of the vehicle acts on the first plate member 31 and the second plate member 32, the first length L1 and the second length L2 are, for example, the first timing and the second length L2. It is desirable that both the first plate member 31 and the second plate member 32 are set to be elastically deformed without being plastically deformed even when the timings are different.

  In the above embodiment, the example in which the elastic member 33 includes the first elastic member 331, the second elastic member 332, and the third elastic member 333 has been described, but the elastic member 33 is not limited thereto. The elastic member 33 has the first elastic member 331, and does not have to have at least one of the second elastic member 332 and the third elastic member 333. In this case, when a load in the vehicle height direction acts on the engine mount 3, for example, the first lower protrusion 312 of the first plate member 31 becomes the fourth lower protrusion 322 of the second plate member 32. The second upper protrusion 325 of the second plate member 32 contacts the region 324 and the second region 315 of the first upper protrusion 313 of the first plate member 31.

  In the above embodiment, the vehicle is a cab-over type vehicle, for example, a truck, but the vehicle is not limited to this. The vehicle may be any vehicle that has an engine mount that supports the engine on the frame of the vehicle.

[Effects of Engine Mount Structure S According to this Embodiment]
The engine mount structure S according to the present embodiment includes a plurality of side frames 1 extending in the front-rear direction of the vehicle and a vehicle engine 2 provided between the plurality of side frames 1 in the vehicle width direction. And The engine mount structure S includes a first plate member 31 connected to the side frame 1, a second plate member 32 connected to the engine 2, and a space between the first plate member 31 and the second plate member 32. And the engine mount 3 is provided so as to be inclined so that the first plate member 31 is located outside the second plate member 32 in the vehicle width direction of the vehicle. .

  The first plate member 31 has a first lower protrusion 312 at the lower end, a first upper protrusion 313 at the upper end, and at least a partial area of the second plate member 32. A second lower projection 322 located below the first lower projection 312 is provided at the lower end, and at least a portion of the second upper projection 325 is located below the first upper projection 313. Is provided at the upper end.

  The engine mount structure S according to the present embodiment has a first plate member 31 provided with a first lower protrusion 312 at a lower end and a first upper protrusion 313 at an upper end, and at least a partial area. Are provided at the lower end of the second lower protrusion 322 below the first lower protrusion 312, and at least a part of the second lower protrusion 322 is positioned lower than the first upper protrusion 313. 325 includes a second plate member 32 provided at an upper end.

  Since the engine mount structure S according to the present embodiment has such a structure, when a load in the vehicle height direction acts on the engine mount 3, the first lower protrusion 312 of the first plate member 31 The second upper member 325 of the second plate member 32 contacts the second elastic member 332 provided in the fourth region 324 of the second lower protrusion 322 of the second plate member 32. It comes into contact with the third elastic member 333 provided in the second region 315 of the upper protrusion 313.

  Therefore, the engine mount structure S is prevented from being stretched beyond a predetermined length in the height direction of the vehicle, so that the elastic member 33 is cut off or the elastic member 33 is connected to the first plate member 31. The engine mount 3 can be prevented from being broken by being peeled off from the second plate member 32.

  Further, in the engine mount structure S, since the engine mount 3 has the lower stopper portion and the upper stopper portion, for example, as compared with an engine mount having one of the lower stopper portion and the upper stopper portion, Since the force acting between the first plate member 31 and the second plate member 32 when a load acts in the height direction of the vehicle can be dispersed, the engine mount 3 is hardly broken. As a result, the engine mount structure S can make the engine mount 3 hard to break when a load in the height direction of the vehicle acts.

  As described above, the present invention has been described using the embodiment, but the technical scope of the present invention is not limited to the scope described in the above embodiment, and various modifications and changes are possible within the scope of the gist. is there. For example, the specific embodiment of the dispersion / integration of the apparatus is not limited to the above-described embodiment, and all or a part of the apparatus may be functionally or physically dispersed / integrated in an arbitrary unit. Can be. Further, new embodiments that are generated by arbitrary combinations of the plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

S ... engine mount structure 1 ... side frame 2 ... engine 3 ... engine mounts 31 and 31a ... first plate member 311 ... first flat plate portion 312 ... first lower protrusion. Part 313 first upper protrusion 314 first area 315 second area 316 first fastening part 32, 32a second plate member 321 second flat part 322... Second lower protruding portion 323... Third region 324... Fourth region 325... Second upper protruding portion 326. First elastic member 332 Second elastic member 333 Third elastic member 4 Side frame side bracket 41 First bracket 42 Second bracket 421 First hole 5 ... Engine side bracket 51 ... Second hole 900 ... Comparative example Engine mount of the

Claims (3)

A plurality of side frames extending in the longitudinal direction of the vehicle,
An engine of the vehicle provided between the plurality of side frames in a vehicle width direction of the vehicle,
A first plate member connected to the side frame; a second plate member connected to the engine; and an elastic member provided between the first plate member and the second plate member. An engine mount that is provided so as to be inclined such that the first plate member is located outside the second plate member in the vehicle width direction of the vehicle;
Has,
The first plate member is provided with a first lower protrusion at a lower end and a first upper protrusion at an upper end,
The second plate member has a second lower projection at a lower end, at least a part of which is located below the first lower projection, and at least a part of the first upper projection. An engine mount structure, wherein a second upper protrusion located below the upper end is provided at an upper end. The first plate member further includes a first flat plate portion in contact with the elastic member,
The first lower protruding portion extends from a lower end of the first flat plate portion toward an inside in a vehicle width direction of the vehicle,
A first region extending upward from a top end of the first flat plate portion in a height direction of the vehicle, and a first region extending from a top end of the first region in a vehicle width direction of the vehicle. A second region extending inward, and
The second plate member further has a second flat plate portion in contact with the elastic member,
The second lower protruding portion extends from a lower end of the second flat plate portion downward in a height direction of the vehicle, and a third region extending from a lower end of the third region in a vehicle width direction of the vehicle. And a fourth region extending outward.
The second upper projection extends outward from the upper end of the second flat plate in the vehicle width direction of the vehicle,
The engine mount structure according to claim 1. A side frame-side bracket provided between the engine mount and the side frame, and for connecting the engine mount to the side frame;
An engine-side bracket provided between the engine mount and the engine, and for connecting the engine mount to the engine;
Further having
The first plate member extends orthogonally to the first flat plate portion, and a first nut is tightened in a state where the first nut is inserted into a first hole formed in the side frame-side bracket. It further has one fastening part,
The second plate member extends perpendicular to the second flat plate portion, and has a second nut fastened in a state where the second nut is inserted into a second hole formed in the engine-side bracket. Characterized by further having a fastening portion,
The engine mount structure according to claim 2.

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