Vehicle engine mount bracket

Abstract

To provide a vehicular engine mount bracket capable of supporting an engine mount with high stiffness.SOLUTION: An engine mount bracket 100 is installed in a power unit mounting room of a vehicle to support an engine mount. The engine mount bracket 100 is equipped with a lower side member 110 installed on a side member 108, a curved recessed portion 120 that is formed within a predetermined range of a top surface portion 116 of the lower side member 110 and is cylindrically recessed in a vehicle width direction, a cylindrical member 112 that has a cylinder shape and is installed in the curved recessed portion 120 to hold a bush portion of the engine mount, a front side bracket 114 that connects a front side of the cylindrical member 112 and the top surface portion of the lower side member 110, and a rear side bracket 118 that connects a rear side of the cylindrical member 112 and the top surface portion 116 of the lower side member 110.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an engine mount bracket for a vehicle. [Background technology]

[0002] Generally, a vehicle engine is suspended from the vehicle body using an engine mount in the power unit mounting compartment at the front of the vehicle, where the engine and motor are mounted. The engine mount is primarily composed of a bushing made of an elastic material and a housing that encases the bushing. For example, Figure 2 of Patent Document 1 discloses an engine-side mount 8 that includes an elastic member 24 and an outer tube 22. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-274485 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, the engine mount is installed using a bracket or the like on one side of the power unit mounting compartment in the vehicle width direction. For example, Fig. 10 of Patent Document 1 shows a conventional configuration in which a vehicle body-side mounting bracket 124 is attached above a side member 120 in the engine compartment. However, because the engine load is applied to such an engine mount bracket toward the inside of the vehicle width direction, it is prone to bend toward the inside of the vehicle width direction, which may worsen vehicle body vibration.

[0005] In view of the above problems, the present invention has an object to provide an engine mount bracket for a vehicle that can support an engine mount with high rigidity. [Means for solving the problem]

[0006] In order to solve the above problems, a representative configuration of a vehicle engine mount bracket according to the present invention is an engine mount bracket for a vehicle that is installed in a power unit mounting room of a vehicle and supports an engine mount, the vehicle engine mount bracket comprising: a lower member that is installed on a side member extending in the fore-and-aft direction of the vehicle at the vehicle width end of the power unit mounting room; a curved recess that is cylindrically recessed across the vehicle width direction and formed in a predetermined range on the top surface of the lower member; a cylindrical tubular member that is installed in the curved recess and holds a bushing portion of the engine mount; a front bracket that connects the front side of the tubular member to the top surface of the lower member; and a rear bracket that connects the rear side of the tubular member to the top surface of the lower member. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide an engine mount bracket for a vehicle that is capable of supporting an engine mount with high rigidity. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing an outline of a vehicle engine mount bracket according to an embodiment of the present invention; [Figure 2] FIG. 2 is a view showing the engine mount bracket of FIG. 1 alone. [Figure 3] 3A to 3C are diagrams showing the engine mount bracket of FIG. 2 as viewed from various directions. DETAILED DESCRIPTION OF THE INVENTION

[0009] An engine mount bracket for a vehicle according to one embodiment of the present invention is an engine mount bracket for a vehicle that is installed in a power unit mounting room of a vehicle and supports an engine mount, the engine mount bracket for a vehicle being characterized by comprising: a lower member that is installed on a side member that extends in the fore-and-aft direction of the vehicle at the end of the power unit mounting room in the vehicle width direction; a curved recess that is formed in a predetermined range of the top surface of the lower member and is cylindrically recessed across the vehicle width direction; a cylindrical tubular member that is installed in the curved recess and holds a bushing portion of the engine mount; a front bracket that connects the front side of the tubular member to the top surface of the lower member; and a rear bracket that connects the rear side of the tubular member to the top surface of the lower member.

[0010] According to the above configuration, vibrations of the bushing portion of the engine mount, particularly in the vehicle width direction, can be efficiently suppressed, and the vibration performance of the vehicle body can be improved.

[0011] The top surface portion of the lower member may include a front top surface portion forward of the curved recess and a rear top surface portion formed rearward of the curved recess and at a lower position than the front top surface portion, and the front bracket may have an L-shape along the front top surface portion and the tubular member when viewed from the vehicle width direction, and the rear bracket may have an L-shape along the rear top surface portion and the tubular member when viewed from the vehicle width direction.

[0012] According to the above configuration, it is possible to more efficiently suppress vibrations of the tubular member to which the bushing portion is attached by utilizing the front bracket and the rear bracket.

[0013] The curved recess may be recessed below the rear top surface portion.

[0014] According to the above configuration, the rear bracket and the front bracket are joined to the tubular member placed in the curved recess from a higher position, so that vibration of the tubular member can be more efficiently suppressed.

[0015] The top surface of the lower member is attached to the upper part of the side member, and the vehicle engine mount bracket may further include a wall portion extending downward from the inner side of the top surface in the vehicle width direction and attached to the inner side of the side member in the vehicle width direction, and an upper bracket connecting the upper part of the tubular member to the side wall of the power unit mounting room.

[0016] According to the above configuration, by utilizing the wall surface portion of the lower member and the upper bracket, it is possible to efficiently suppress vibration of the vehicle engine mount bracket in the vehicle width direction.

[0017] The front bracket and the rear bracket may be line-welded at the portions that come into contact with the tubular member.

[0018] According to the above configuration, the tubular member is joined to the front bracket and the rear bracket with higher rigidity, and vibration of the tubular member can be efficiently suppressed. [Example]

[0019] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Dimensions, materials, and other specific values ​​shown in these embodiments are merely examples for facilitating understanding of the invention and, unless otherwise specified, do not limit the present invention. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0020] Fig. 1 is a perspective view showing an outline of a vehicle engine mount bracket (hereinafter referred to as engine mount bracket 100) according to an embodiment of the present invention. In Fig. 1 and all other drawings of the present application, the longitudinal direction of the vehicle is indicated by arrows F (Forward) and B (Backward), the left and right directions of the vehicle width are indicated by arrows L (Leftward) and R (Rightward), and the vertical direction of the vehicle is indicated by arrows U (Upward) and D (Downward).

[0021] The engine mount bracket 100 is installed in the power unit mounting room at the front of the vehicle and supports an engine mount (not shown) that suspends the engine. The engine mount bracket 100 is located on the left side of the power unit mounting room in the vehicle width direction, behind a battery bracket 106 that supports a battery 102.

[0022] Figure 2 is a view showing the engine mount bracket 100 alone in Figure 1. Figure 2(a) is a perspective view of the engine mount bracket 100 in Figure 1.

[0023] The lower member 110 is the base of the engine mount bracket 100 and is installed on a side member 108 (see FIG. 1) that extends in the fore-and-aft direction of the vehicle at the end of the power unit mounting room in the vehicle width direction.

[0024] A top surface portion 116 of lower member 110 is attached to the upper portion of side member 108 using a plurality of fastening holes 138. A wall surface portion 140 of lower member 110 is a portion that extends downward from the inner side in the vehicle width direction of top surface portion 116, and is attached to a side portion on the inner side in the vehicle width direction of side member 108. Wall surface portion 140 also has a plurality of fastening holes 142 for fastening to side member 108.

[0025] The cylindrical member 112 is a cylindrical member that is placed on the lower member 110, and is held with a bushing portion of an engine mount (not shown) inserted inside.

[0026] The front bracket 114 connects the front side of the tubular member 112 and the top surface 116 of the lower member 110. The rear bracket 118 connects the rear side of the tubular member 112 and the top surface 116 of the lower member 110. The front bracket 114 and the rear bracket 118 are shaped like an inverted U when viewed from the front-to-rear direction (see the front bracket in Figure 3(b)).

[0027] The front bracket 114 and the rear bracket 118 are joined by line welds 128 at the portions that come into contact with the tubular member 112 and the portions that come into contact with the lower member 110. The line welds 128 join the front bracket 114 and the rear bracket 118 to the tubular member 112 and the lower member 110, respectively, with higher rigidity, making it possible to efficiently suppress vibration of the tubular member 112.

[0028] Figure 2(b) is a view of the engine mount bracket 100 of Figure 1 as seen from the inside in the vehicle width direction. A curved recess 120 is formed in the central area of ​​the top surface 116 of the lower member 110. The curved recess 120 is cylindrically recessed across the vehicle width direction, and the tubular member 112 is installed in the curved recess 120.

[0029] The top surface 116 of the lower member 110 is configured to include a front top surface 116a and a rear top surface 116b. The front top surface 116a is formed in front of the curved recess 120. The rear top surface 116b is formed in a position behind the curved recess 120 and lower than the front top surface 116a.

[0030] When viewed from the vehicle width direction, the front bracket 114 has an L shape that follows the front top surface portion 116a and the tubular member 112. When viewed from the vehicle width direction, the rear bracket 118 has an L shape that follows the rear top surface portion 116b and the tubular member 112.

[0031] With engine mount bracket 100 configured as described above, tubular member 112 can be joined to lower member 110 with high rigidity, thereby suppressing vibration, particularly in the vehicle width direction, of the bushing of the engine mount attached to the inside of tubular member 112, and improving the vibration performance of the vehicle body. In particular, by using front bracket 114 and rear bracket 118, vibration of tubular member 112 can be suppressed more efficiently.

[0032] Curved recess 120 is recessed downward relative to rear top surface portion 116b. With this configuration, rear bracket 118 and front bracket 114 are joined to tubular member 112 placed in curved recess 120 from a higher position, making it possible to more efficiently suppress vibration of tubular member 112, particularly in the front-to-rear direction.

[0033] Figure 3 shows the engine mount bracket 100 of Figure 2 as viewed from various directions. Figure 3(a) is a top view of the engine mount bracket 100 of Figure 2. An upper bracket 122 is provided on the upper part of the tubular member 112. The upper bracket 122 is a member that connects the upper part of the tubular member 112 to a side wall 130 (see Figure 1) of the power unit mounting room.

[0034] The upper bracket 122 has a base 124 joined to the tubular member 112, and a sidewall joint 126 that bends upward from the outer side of the base 124 in the vehicle width direction and is joined to a sidewall 130 (see FIG. 1) of the power unit mounting room. The base 124 is joined to the upper part of the tubular member 112 by a welded portion 132 (see FIG. 2(a)). A fastening hole 134 is provided in the sidewall joint 126 for joining to the sidewall 130. In addition, the upper bracket 122 is provided with flanges 136 on the front and rear edges extending from the base 124 to the sidewall joint 126, thereby increasing rigidity.

[0035] 3(b) is a view of the engine mount bracket 100 of FIG. 2 as seen from the front of the vehicle. The engine mount bracket 100 can be joined to the vehicle at different positions in the vehicle width direction by the wall surface portion 140 of the lower member 110 and the sidewall joint portion 126 of the upper bracket 122. This configuration enables the engine mount bracket 100 to efficiently suppress vibrations and deformations in the vehicle width direction that are applied from the mount bracket to the tubular member 112.

[0036] As described above, the engine mount bracket 100 can improve the vibration performance of the engine mount, and ultimately improve the sound pressure sensitivity caused by input from the engine mount and the vibration sensitivity of the vehicle floor.

[0037] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that these modifications and alterations also fall within the technical scope of the present invention. [Industrial Applicability]

[0038] The present invention can be used in an engine mount bracket for a vehicle. [Explanation of symbols]

[0039] 100...engine mount bracket, 102...battery, 106...battery bracket, 108...side member, 110...lower member, 112...tubular member, 114...front bracket, 116...top surface portion, 116a...front top surface portion, 116b...rear top surface portion, 118...rear bracket, 120...curved recess, 122...upper bracket, 124...base portion, 126...side wall joint portion, 128...line weld, 130...side wall, 132...welded portion, 134...fastening hole, 136...flange, 138...fastening hole, 140...wall portion, 142...fastening hole

Claims

1. In a vehicle engine mount bracket that is installed in a power unit mounting compartment of a vehicle and supports an engine mount, The vehicle engine mount bracket is a lower member installed on a side member extending in the front-rear direction of the vehicle at an end of the power unit mounting room in the vehicle width direction; a curved recess formed in a cylindrical shape across the width of the vehicle and located within a predetermined range of the top surface of the lower member; a cylindrical member that is cylindrical and is installed in the curved recess to hold a bushing portion of the engine mount; a front bracket connecting a front side of the tubular member and a top surface of the lower member; a rear bracket connecting a rear side of the tubular member and a top surface of the lower member, the top surface portion of the lower member is attached to an upper portion of the side member, the lower member has a plurality of fastening holes for fastening to the side members, a front bracket for mounting a vehicle engine thereon, the front bracket being provided with a front end portion of the engine mount bracket for mounting a vehicle engine engine thereon, the front end portion of the engine mount bracket for mounting a vehicle engine engine thereon, the rear end portion of the engine mount bracket for mounting a vehicle engine engine engine thereon, the rear end portion of the engine mount bracket for mounting a vehicle engine engine engine thereon,

2. the top surface portion of the lower member includes a front top surface portion forward of the curved recess and a rear top surface portion rearward of the curved recess and formed at a position lower than the front top surface portion, the front bracket has an L-shape along the front top surface portion and the tubular member when viewed from the vehicle width direction, the rear bracket has an L-shape along the rear top surface portion and the cylindrical member when viewed from the vehicle width direction, the lower member further includes a wall surface portion extending downward from the inner side of the top surface portion in the vehicle width direction and attached to the inner side portion of the side member in the vehicle width direction, 2. The vehicle engine mount bracket according to claim 1, wherein other portions of the plurality of fastening holes are provided in a region of the wall portion that overlaps the lower portion of the front bracket and a region that overlaps the lower portion of the rear bracket, and are fastened to the side portions of the side member.

3. 3. The engine mount bracket for a vehicle according to claim 2, wherein the curved recess is recessed downward from the rear top surface portion.

4. An engine mount bracket for a vehicle as described in any one of claims 1 to 3, characterized in that the engine mount bracket for a vehicle further comprises an upper bracket connecting the upper part of the tubular member to the side wall of the power unit mounting room.

5. 5. The vehicle engine mount bracket according to claim 1, wherein the front bracket and the rear bracket are line-welded to each other at portions that come into contact with the tubular member.

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