JPH09112632A - Mount device of power plant for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improved mounted device for a power plant of car, with which variation of the fastening force due to the difference in the thermal expansion or contraction between an outer cylinder and fastening member likely according to the conventional arrangement is precluded which should contribute to preventing worsened vibration of the power plant, wherein the conventional arrangement signifies that a fastening member made of metal is partially embedded in the fastening seat of the outer cylinder made of FRP. SOLUTION: The bases 33 and anchor parts 34 of a pair of fastening members 23 are embedded in the fastening seat 20b of an outer cylinder 20 made of FRP, and the fastening seat 33a of each member 23 is protruded for a certain small distance G from the seat face 24 of the seat 20b so as to preclude ill influence of likely difference in the thermal expansion or contraction between the outer cylinder 20 and fastening member 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle power plant mounting device, and more particularly to a metal fastening member such as a bolt or a nut near a fastening seat of an outer tubular member made of fiber reinforced synthetic resin. It relates to a structure that is partially embedded and fixed.

[0002]

2. Description of the Related Art Conventionally, a power plant including a vehicle engine and a transmission has, for example, three sets of mounting devices.
It is elastically supported by the vehicle body. Of these mounting devices, a solid mounting device that is not a liquid-sealing type has an outer cylinder member made of metal, an inner pipe, a cushioning member made of rubber provided between the outer cylinder member and the inner pipe, and the like. The tubular member includes a pair of fastening seats fixed to the vehicle body, the fastening seats being formed by a fastening seat forming member welded to the outer tubular member, and a pair of bolts or nuts provided on the fastening seats. A fastening member is provided, and is fixed via a fastening member and a mating fastener (nut or bolt) screwed to the fastening member in a state where the fastening seat is in contact with the support surface on the vehicle body side. For example, Japanese Utility Model Laid-Open No. 2-88825 discloses this type of mounting device.

By the way, recently, from the viewpoints of weight reduction and cost reduction of the mount device, a mount device in which the outer cylinder member is made of a fiber reinforced synthetic resin material (for example, nylon 66 mixed with glass fiber) is practically used. It is being converted. In this mounting device, a fastening seat is integrally formed on an outer cylinder member made of fiber reinforced synthetic resin, and
A pair of fastening members are provided, and the fastening members are fixed to the outer cylinder member by embedding at least a part of the fastening member in the vicinity of the fastening seat. The fastening seat surface of each fastening member is the fastening seat of the outer tubular member. The fastening member is fixed so as to match the seat surface.

[0004]

In the mounting device employing the outer tubular member made of fiber reinforced synthetic resin, as described above, the fastening seat surface of each fastening member is used as the seat surface of the fastening seat of the outer tubular member. Since the fastening members are fixed in the matched state,
The following problems arise. Since the coefficient of thermal expansion of the fiber reinforced synthetic resin material is higher than that of the metal fastening member, the seating surface of the fastening seat due to the difference in thermal contraction amount between the outer cylinder member and the fastening member, especially in cold weather. Is relatively retracted with respect to the fastening seat surface of the fastening member, and the fastening force of the fastening member decreases. As a result, the vibration of the power plant becomes severe and N
VH (Noise Viblation Harshness) deteriorates, and the durability of the outer cylinder member also deteriorates. Also, under high temperature,
On the contrary, due to the difference in thermal expansion amount between the outer cylinder member and the fastening member, the seat surface of the fastening seat relatively advances with respect to the fastening seat surface of the fastening member, and the fastening force by the fastening member becomes excessive. . An object of the present invention is to prevent the fluctuation of the fastening force due to the thermal contraction difference and the thermal expansion difference between the outer cylinder member and the fastening member, and to suppress the deterioration of the vibration of the power plant due to the thermal contraction difference,
To ensure the durability of the outer cylinder member.

[0005]

According to a first aspect of the present invention, there is provided a mounting device for a power plant for a vehicle, comprising: an outer cylinder member having a fastening seat; and a cushioning member having elasticity. A metal fastening member having a coefficient of thermal expansion smaller than that of the outer tubular member is provided on the fastening seat of the outer tubular member, and at least a part of the fastening member is embedded in the fastening seat of the outer tubular member, and a fastening seat surface of the fastening member. Is protruded from the seat surface of the fastening seat by a predetermined amount. The fastening member is a member mainly composed of bolts or nuts, and the predetermined amount is about 0.5 to 1.0 mm.

Since the fastening member is a metal member having a coefficient of thermal expansion smaller than that of the outer tubular member, the shrinkage amount of the outer tubular member is larger than the shrinkage amount of the fastening member in cold weather, and the fastening of the outer tubular member is fastened. Although the seating surface of the seat is retracted relative to the fastening seating surface of the fastening member, the fastening seating surface of the fastening member is protruded from the seating surface of the fastening seat by a predetermined amount, so that the outer cylinder member is The fastening force that is fastened by the fastening member to the support member on the vehicle body side that supports the power plant does not change. This is the same at high temperature, and even if the thermal expansion amount of the outer cylinder member becomes larger than the thermal expansion amount of the fastening member at high temperature, the fastening force of the fastening member does not change.

According to a second aspect of the present invention, there is provided a mounting apparatus for a power plant for a vehicle according to the first aspect, wherein the fastening seat surface of the fastening member is a first fastening seat surface provided in the vicinity of the fastening body of the fastening member. , And a second fastening seat surface provided in the vicinity of both ends in the width direction of the fastening seat of the outer tubular member. In this manner, in addition to the first fastening seat surface provided in the vicinity of the fastening main body portion of the fastening member, the second fastening seat surfaces near the widthwise ends of the fastening seat of the outer tubular member are provided, so that the outer tubular member is provided. It is possible to secure stability in the width direction. In addition, the same effect as that of the first aspect can be obtained.

According to a third aspect of the present invention, there is provided a mounting apparatus for a power plant for a vehicle according to the second aspect, wherein the fastening seat surface of the fastening member is provided at portions near both ends in the longitudinal direction of the fastening seat of the outer tubular member. It has three fastening seat surfaces. Thus, in addition to the first fastening seat surface provided in the vicinity of the fastening main body portion of the fastening member, the second fastening seat surface near the widthwise ends of the fastening seat of the outer tubular member and the fastening of the outer tubular member. Since the third fastening seating surfaces near both ends in the length direction of the seat are provided, the stability of the outer cylinder member in the width direction and the stability of the outer cylinder member in the length direction can be ensured.

According to a fourth aspect of the present invention, there is provided a mounting apparatus for a power plant for a vehicle according to the third aspect of the invention.
The first auxiliary member forming the second fastening seat surface and the second auxiliary member forming the third fastening seat surface are integrally formed.
In this way, the first fastening member that forms the second fastening seat surface is formed.
Since the auxiliary member and the second auxiliary member forming the third fastening seat surface are integrally formed, the second fastening seat surface and the third fastening seat surface can be formed without increasing the number of members, and the first to third It is also advantageous in ensuring the accuracy of the third fastening seat surface.

According to a fifth aspect of the present invention, there is provided a mounting device for a vehicle power plant according to the fourth aspect, wherein the fastening main body portion of the fastening member is a bolt.
In this case, since the fastening main body portion of the fastening member is in a state of protruding to the outside of the fastening seat of the outer tubular member, when the fastening member is set in the molding die for molding the outer tubular member and integrally molded,
It is advantageous for holding the fastening member in the mold.

According to a sixth aspect of the present invention, there is provided a mounting device for a power plant for a vehicle according to the fourth aspect, wherein the fastening main body portion of the fastening member is a nut.
In this case, when the fastening member is set in the molding die for molding the outer tubular member and integrally molded, the fastening main body portion is small and the molding die does not become large, which is advantageous.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example of a case in which the present invention is applied to a mounting device that supports a power plant including an engine and an automatic transmission in an engine room in the front part of an automobile. As shown in FIGS. 1 and 2, a power plant 1 includes a vertical in-line 4-cylinder engine 2 arranged with its crankshaft oriented in the vehicle width direction, and a crank of the engine 2 arranged on the left side of the engine 2. And an automatic transmission 3 interlocked with the shaft.

An engine mount frame 4 is arranged in the front-rear direction on the lower side of the left side of the power plant 1, and a front end portion of the engine mount frame 4 is provided with a pair of rubber bushes 5 and a cross member of the vehicle body. The rear end of the engine mount frame 4 is connected to a cross member of the vehicle body through a pair of rubber bushes 6.
The power plant 1 is supported by the vehicle body through the three mounting devices 7, 8 and 9, but the rear portion of the left part of the power plant 1 has a mounting bracket 10 and a first mounting device 7.
Is elastically supported by the engine mount frame 4 via
The left front part of the power plant 1 is elastically supported by the engine mount frame 4 via the mount bracket 11 and the second mount device 8, and the right end part of the power plant 1 is the mount bracket 12 and the third mount device 9. It is elastically supported by the front frame of the vehicle body.

The first mount device 7 will be described. As shown in FIGS. 3 to 6, the first mounting device 7 is
The outer cylinder member 20 made of a fiber reinforced synthetic resin material, the inner cylinder member 21 made of metal, and the outer cylinder member 20 and the inner cylinder member 21 fixed to the outer cylinder member 20 and the inner cylinder member 21 elastically. The first mounting device 7 has a cushioning member 22 made of synthetic rubber and a pair of fastening members 23 and the like, which are connected to each other, with the axis centered in the vehicle width direction. The outer cylinder member 20 is made of, for example, a fiber-reinforced synthetic resin material obtained by mixing 30% by weight of glass fiber into nylon 66.
In 0, the cylindrical portion 20a and the fastening seat 20b connected to the lower portion thereof are integrally formed, and the seat surface 24 of the fastening seat 20b is formed substantially horizontally.

The bolt member 2 inserted through the inner cylinder member 21.
Both ends of the bolt member 25 are fastened to the mount bracket 10 with nuts 26 (see FIG. 5). As shown in FIG. 3, the inner surface of the upper end portion of the cylindrical portion 20a of the outer tubular member 20 is
A first stopper 27 made of synthetic rubber is fixed, and a narrow stopper clearance 28 is provided between the first stopper 27 and the buffer member 22. A second stopper 29 made of synthetic rubber is fixed to the inner surface of the lower end portion of the cylindrical portion 20a of the outer tubular member 20, and a stopper clearance 30 is provided between the second stopper 29 and the buffer member 22. . The first stopper 27 is integrally formed with an instruction piece 27a extending to the outside of the rear end surface of the outer cylinder member 20, and when the first mount device 7 is assembled, the instruction piece 27a is formed.
Is identified by the first mount device 7.

The seat surface 2 of the fastening seat 20b of the outer tubular member 20.
4 is located lower than the lower end of the cylindrical portion 20a of the outer tubular member 20, the seat surface 24 of the fastening seat 20b is formed into a rectangular flat surface that is short in the axial direction, and from the left end surface and the right end surface of the fastening seat 20b. A pair of recesses 31 are provided respectively. Explaining the fastening member 23, a pair of metal fastening members 23
Is attached to the front and rear portions of the seat surface 24 of the fastening seat 20b.
Each fastening member 23 is provided so as to be located at the center in the width direction of b. An anchor portion 34 that is larger than the continuous base portion 33 is integrally formed, and the entire anchor portion 34 and most of the base portion 33 are embedded in the fastening seat 20b and fixed to the fastening seat 20b. The fastening seat surface 33a is a predetermined distance G (for example, 0.5 mm) from the seat surface 24 of the fastening seat 20b.
It is projected. (See FIG. 6).

That is, the coefficient of thermal expansion of the fiber-reinforced synthetic resin material forming the outer cylinder member 20 is larger than the coefficient of thermal expansion of the steel material forming the fastening member 23, but the outer cylinder member 20 and the fastening member 23. This is to prevent the fastening force from fluctuating due to the effects of the difference in thermal contraction and the difference in thermal expansion with. The outer cylinder member 20
Of a pair of fastening members 2 in the mold during injection molding of
3 is set and molded, so that the anchor portion 34 of the pair of fastening members 23 and most of the base portion 33 are embedded in the fastening seat 24.

With the first mounting device 7 assembled, the seat surface 24 of the fastening seat 20b of the outer tubular member 20 is positioned near the upper surface of the engine mount frame 4, and the fastening seat of the base 33 of each fastening member 23 is positioned. With the surface 33a in contact with the upper surface of the engine mount frame 4, the washer 35 is sandwiched between the fastening main body 32 of the fastening member 23 and the nut 36 is screwed and fastened to the fastening seat surface 33a, the nut 36, and the washer. The engine mount frame 4 is sandwiched between the 35 (see FIG. 3). The protrusion 37 formed on the fastening seat 20b of the outer tubular member 20 is fitted into the hole of the engine mount frame 4.

Since the second mounting device 8 has a structure similar to that of the first mounting device 7 as shown in FIGS. 7 to 9, the same parts are designated by the same reference numerals and the description thereof will be omitted. . However, the first stopper 27A of the second mounting device 8
Is formed substantially symmetrically with the first stopper 27, and the stopper corresponding to the second stopper 29 is omitted.
The stopper clearance 30A is formed large. Further, the pointing piece 27b is formed in a state of protruding leftward and rightward with respect to the outer tubular member 20, and the pointing piece 2b is assembled when assembled.
The second mount device 8 is identified from 7b. The second mounting device 8 is arranged with its axis in the vehicle width direction, like the first mounting device 7. Further, since the third mounting device 9 has substantially the same structure as the first and second mounting devices 7 and 8, the description thereof will be omitted. However, the third mounting device 9 has its axis oriented in the front-rear direction. It is arranged.

The operation of the first mounting device 7 described above will be described. The outer cylinder member 20 is made of a fiber reinforced synthetic resin material, and a pair of fastening members 2 are used when the outer cylinder member 20 is molded.
Since most of the base portion 33 of No. 3 and the anchor portion 34 are embedded and fixed to the fastening seat 20b, the outer tubular member 20 and the pair of fastening members 23 can be firmly connected. A pair of fastening members 2
Since the fastening main body portion 32 of 3 is a bolt and not a nut, it is easy to set the fastening member 23 in the molding die for molding the outer tubular member 20. Since the outer cylinder member 20 is made of a fiber reinforced synthetic resin material, the outer cylinder member 20 can be made to have sufficient strength, can be made lightweight, and can be manufactured at a low cost. Since the pair of fastening members 23 are configured by bolt-shaped members instead of nut-shaped members, the cylindrical portion 20 of the outer tubular member 20.
The fastening member 2 is provided on the lower surface side of the fastening seat 20b extending downward from a.
3 can be provided, and the first mounting device 7 can be downsized as a whole.

Since most of the base portion 33 of each fastening member 23 and the anchor portion 34 are embedded and fixed to the fastening seat 20b of the outer tubular member 20, the fastening member 23 should be firmly fixed to the fastening seat 20b. And the anchor part 34 is the base part 3.
Since it is formed larger than 3, the fastening member 23 does not slip out of the fastening seat 20b.

The fastening seat surface 33 of the base 33 of each fastening member 23
a is formed so as to project from the seat surface 24 of the fastening seat 20b by a predetermined distance G, and the fastening seat surface 33a is brought into contact with the upper surface of the engine mount frame 4, and the fastening member 2
Since the nut 36 is screwed and fastened to the fastening main body portion 32 of No. 3, the outer cylinder member 20 is attached to the engine mount frame 4 due to the difference in thermal contraction and the difference in thermal expansion between the outer cylinder member 20 and the fastening member 23.
The fastening force to be fastened does not change. If the seating surface 24 of the fastening seat 20b is configured to receive the fastening force, the fastening force may vary due to the difference in thermal contraction or the difference in thermal expansion between the outer cylinder member 20 and the fastening member 23. As described above, since the seating surface 24 of the fastening seat 20b is not configured to receive the fastening force, it is possible to reliably prevent the variation of the fastening force at the time of cold or high temperature, and to reduce the fastening force. It is possible to reliably prevent deterioration of the vibration.

Further, since the predetermined distance G is a small distance of about 0.5 mm, the seating surface 2 of the fastening seat 20b of the outer tubular member 20.
It is also possible to ensure the function of suppressing the first mounting device 7 from vibrating in the left-right direction due to the contact of the engine 4 with the engine mount frame 4. Further, since the pair of fastening members 23 are arranged at a front portion and a rear portion of the fastening seat 20b with a space therebetween,
The load condition of the fastening member 23 can be relaxed, and since the fastening member 23 is arranged at the central portion in the width direction of the fastening seat 20b, it is advantageous in terms of strength of the fastening seat 20b.

Next, a modified form in which the above embodiment is partially modified will be described. 1] In the first mounting device 7A in which the first mounting device 7 is modified, as shown in FIG.
The seat surface 24 is provided on both left and right sides of the fastening seat surface 33a of the base 33 of FIG.
The second fastening seat surface 33b located near both ends in the width direction of
The second fastening seat surface 33b is formed so as to be flush with the first fastening seat surface 33a, and the second fastening seat surface 33b is formed on the lower end surface of the first auxiliary member 34a integrally formed with the anchor portion 34.
Since these two pairs of second fastening seat surfaces 33b are formed, the first
It is possible to secure the stability of the mounting device 7A against shake in the left-right direction and prevent deterioration of the vibration in the left-right direction.

2] In the first mounting device 7B which is a modification of the first mounting device 7, as shown in FIG.
On the left and right sides of the fastening seat surface 33a of the base 33 of each fastening member 23, the second fastening seat surfaces 33b located near the widthwise ends of the seat surface 24 are flush with the first fastening seat surface 33a. The second fastening seat surface 33b is formed and the anchor portion 3
4 is formed on the lower end surface of the first auxiliary member 34a that is integrally formed with the vehicle. Further, the third fastening seat surface 33c is provided in the vicinity of both ends in the longitudinal direction of the fastening seat 20b, and the third fastening seat surface 33c is provided.
a, 33b and the third surface
The fastening seat surface 33c is formed on the lower end surface of the second auxiliary member 34b integrally formed with the anchor portion 34. Since the two pairs of second fastening seating surfaces 33b and the pair of third fastening seating surfaces 33c are formed in this manner, the stability of the first mounting device 7B against lateral deflection and longitudinal deflection is ensured. It is possible to prevent deterioration of the vibration in the left-right direction and the vibration in the front-rear direction.

3] In the first mount device 7C which is a modification of the first mount device 7, as shown in FIG.
The anchor portions 34A of the pair of fastening members 23 are integrally formed, and the second fastening seat surface 33d is formed in the vicinity of the left and right ends of the fastening seat 20b so as to be flush with the first fastening seat surface 33a. The pair of second fastening seat surfaces 33d are formed on the lower end surface of the auxiliary member 34c integrally formed with the anchor portion 34A. Since the pair of second fastening seating surfaces 33d is formed, the stability of the first mounting device 7C against the lateral shake can be ensured and the lateral vibration can be prevented from deteriorating.

4] In addition to the nylon 66, nylon 612, aromatic nylon, nylon / polypropylene alloy, polyacetal, polybutylene terephthalate is used as the synthetic resin material applied to the fiber reinforced synthetic resin material constituting the outer tubular member 20. , Polyethylene terephthalate, polyphenylene sulfide, polyphenylene ether, polycarbonate and the like can be applied. Further, the mixing ratio of the glass fiber mixed in the fiber reinforced synthetic resin material is not limited to 30% by weight and may be 25 to 40% by weight.

5] When the outer cylinder member 20 is molded, there may occur a weld portion where the resin materials flowing from opposite directions in the molding die finally meet each other.
It is desirable that the weld portion is formed at a position displaced from the main axis of the mounting device in the load acting direction.

6] In order to increase the strength of the fastening seat 20b of the outer tubular member 20, it is conceivable to increase the fiber content ratio of the fiber reinforced synthetic resin material forming the fastening seat 20b. 7] Stoppers 27, 27 in the outer cylinder member 20
A and 29 may be formed of a metal member different from the outer cylinder member 20, and the stoppers 27, 27A and 29 may be integrally formed with the outer cylinder member 20 with a fiber reinforced synthetic resin material. .

8] In the mounting devices 7 and 8 of the above embodiment, the fastening body portion 32 is used as the fastening member 23.
Although a member which is a bolt is applied, a nut may be applied as a fastening member. In that case, the fastening seat 20b of the outer tubular member 20 is extended to the front and rear sides, and a fastening member mainly composed of a nut is embedded in the extension portion, and the fastening seat surface of the nut is the seat surface 24 of the fastening seat 20b. A predetermined distance G from each other so as to project.

9] In the above embodiment, the outer cylinder member 20.
The outer cylinder member 20 is made of a fiber reinforced synthetic resin material.
May be made of a high-strength synthetic resin material containing no fibers and having a larger coefficient of thermal expansion than the fastening member 23, or a metal material such as an aluminum alloy (provided that the coefficient of thermal expansion is higher than that of the fastening member 23). Is large). 10] In the outer cylinder member 20, a high-strength needle wire made of one or more annular piano wires or steel wires is embedded in the meat wall of the outer cylinder member 20, and a pair of the needle wires is provided. It is also possible to fix it to the base 32 of the fastening member 23. As described above, when the high-strength needle wire is provided, the displacement can be restrained through the high-strength needle wire even if the outer cylinder member 20 is damaged in the event of a collision of the vehicle, and therefore the displacement toward the rear of the power plant is prevented. Can be regulated.

[0032]

In the mounting device for a power plant for a vehicle according to the first aspect of the present invention, the fastening seat of the outer tubular member is provided with a metallic fastening member having a coefficient of thermal expansion smaller than that of the outer tubular member, and at least the fastening member is provided. A part of it is embedded in the fastening seat of the outer cylinder member, and the fastening seat surface of the fastening member is made to protrude from the seat surface of the fastening seat by a predetermined amount. The fastening force of the fastening member does not change. Therefore, it is possible to prevent the vibration of the power plant from being deteriorated due to the reduction of the fastening force due to the difference in heat shrinkage between the outer cylinder member and the fastening member, especially in cold weather, and the deterioration of the vibration reduces the durability of the outer cylinder member. Can be prevented.

According to a second aspect of the present invention, there is provided a mounting apparatus for a power plant for a vehicle according to the first aspect, wherein the fastening seat surface of the fastening member is a first fastening seat surface provided in the vicinity of the fastening body of the fastening member. , And a second fastening seat surface provided in the vicinity of both ends in the width direction of the fastening seat of the outer tubular member. In this manner, in addition to the first fastening seat surface provided in the vicinity of the fastening main body portion of the fastening member, the second fastening seat surfaces near the widthwise ends of the fastening seat of the outer tubular member are provided, so that the outer tubular member is provided. It is possible to secure stability in the width direction and prevent the vibration of the power plant from being deteriorated. In addition, the same effect as that of the first aspect can be obtained.

According to a third aspect of the present invention, there is provided a mounting apparatus for a power plant for a vehicle according to the second aspect, wherein the fastening seat surface of the fastening member is provided near both ends in the longitudinal direction of the fastening seat of the outer tubular member. It has three fastening seat surfaces. Thus, in addition to the first fastening seat surface provided in the vicinity of the fastening main body portion of the fastening member, the second fastening seat surface near the widthwise ends of the fastening seat of the outer tubular member and the fastening of the outer tubular member. Since the third fastening seating surfaces near both ends in the length direction of the seat are provided, stability in the width direction of the outer cylinder member and stability in the length direction of the outer cylinder member are ensured, and vibration of the power plant is deteriorated. Can be prevented.

According to a fourth aspect of the present invention, there is provided a mount device for a vehicle power plant according to the third aspect of the present invention.
The first auxiliary member forming the second fastening seat surface and the second auxiliary member forming the third fastening seat surface are integrally formed.
In this way, the first fastening member that forms the second fastening seat surface is formed.
Since the auxiliary member and the second auxiliary member forming the third fastening seat surface are integrally formed, the second fastening seat surface and the third fastening seat surface can be formed without increasing the number of members, and the first to third It is also advantageous in ensuring the accuracy of the third fastening seat surface.

According to a fifth aspect of the present invention, there is provided a vehicle power plant mounting device according to the fourth aspect, wherein the fastening main body portion of the fastening member is a bolt.
In this case, since the fastening main body of the fastening member projects to the outside of the seating surface of the fastening seat of the outer tubular member, when the fastening member is set in the molding die for molding the outer tubular member and integrally molded. Moreover, it is advantageous for holding the fastening member in the mold.

According to a sixth aspect of the present invention, there is provided a mount device for a power plant for a vehicle according to the fourth aspect, wherein the fastening main body portion of the fastening member is a nut.
In this case, when the fastening member is set in the molding die for molding the outer tubular member and integrally molded, the molding die does not increase in size, which is advantageous.

[Brief description of the drawings]

FIG. 1 is a plan view of a power plant and a mounting device according to an embodiment of the present invention.

FIG. 2 is a side view of the power plant and the mounting device of FIG.

FIG. 3 is a side view of the first mounting device.

FIG. 4 is a bottom view of the first mounting device.

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 3;

FIG. 7 is a side view of a second mounting device.

FIG. 8 is a bottom view of the second mounting device.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 7;

FIG. 10 is a view corresponding to FIG. 4 according to the modified embodiment.

FIG. 11 is a view corresponding to FIG. 4 according to the modified embodiment.

FIG. 12 is a view corresponding to FIG. 4 according to the modified embodiment.

[Explanation of symbols]

 1 Power Plant 7 1st Mounting Device 8 2nd Mounting Device 20 Outer Cylinder Member 20b Fastening Seat 22 Buffer Member 23 Fastening Member 32 Fastening Main Body 33 Base 33a Fastening Seating Surface (First Fastening Seating Surface) 33b, 33d Second Fastening Seat Surface 33c Third fastening seat surface 34,34A Anchor portion 34a, 34b, 34c Auxiliary member

Claims (6)

[Claims] 1. A mounting device for a vehicle power plant comprising an outer cylinder member having a fastening seat and an elastic cushioning member, wherein the fastening seat of the outer cylinder member has a coefficient of thermal expansion smaller than that of the outer cylinder member. The metal fastening member is provided, and at least a part of the fastening member is embedded in the fastening seat of the outer tubular member, and the fastening seat surface of the fastening member is projected from the seat surface of the fastening seat by a predetermined amount. Vehicle power plant mounting device. 2. The fastening seat surface of the fastening member is a first fastening seat surface provided in the vicinity of the fastening body portion of the fastening member, and a first fastening seat surface provided in the vicinity of both ends in the width direction of the fastening seat of the outer tubular member. The mounting device for a vehicle power plant according to claim 1, wherein the mounting device has two fastening seat surfaces. 3. The vehicle according to claim 2, wherein the fastening seat surface of the fastening member has a third fastening seat surface provided near both ends in the longitudinal direction of the fastening seat of the outer tubular member. Power plant mounting equipment. 4. The first auxiliary member forming a second fastening seat surface and the second auxiliary member forming a third fastening seat surface are integrally formed on the fastening member. The vehicle power plant mounting device according to. 5. The mounting device for a vehicle power plant according to claim 4, wherein the fastening main body portion of the fastening member is a bolt. 6. The mounting device for a vehicle power plant according to claim 4, wherein the fastening main body portion of the fastening member is a nut.