JPS603405Y2 - Automotive power plant support equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a power plant support device that elastically supports so-called power plants such as engines and transmissions in automobiles.

Conventionally, as this type of power plant support device, for example, as disclosed in Japanese Utility Model Publication No. 49-31306, etc., a first mounting board having a concave mounting portion in the center and a first mounting board in the peripheral portion are used. A second mounting board has a side wall portion surrounding the outer peripheral end surface of the first mounting board, and a buffer rubber is filled and fixed between the surface mounting boards, one of the mounting boards is attached to the vehicle body, and the other mounting board is attached to the vehicle body. is attached to the power plant, elastically supports the power plant, and controls movement of the power plant in the front-back and left-right directions by contact between the outer peripheral edge of the first mounting board and the side wall of the second mounting board. A device having a so-called stopper function is known.

However, in the above-mentioned conventional type, the length of the side wall of the second mounting board must be set larger than the thickness of the buffer rubber in order to perform the stopper function, so the length of the side wall becomes longer. , there is a problem that a large moment load is applied to the second mounting board every time it collides with the first mounting board, and the side wall portion of the second mounting board gradually deforms in a curved manner to the outside and no longer functions as a stopper.

In addition, when the power plant vibrates vertically, the tip of the side wall of the second mounting board may move downward (or upward) from the mounting surface of the first mounting board, so special measures must be taken to mount the first mounting board. There was a problem in that consideration had to be taken and installation was restricted.

The present invention has been made in view of this point, and includes forming a bent portion at a portion of the first mounting board that is remote from the buffer rubber;
The length of the side wall of the second mounting board is shortened by restricting movement of the power plant in the front-rear and left-right directions through contact between the bent portion and the side wall of the second mounting board. The purpose of this is to reduce the moment generated in the second mounting board during the stopper function and to prevent deformation of the side wall portion thereof.

Therefore, the configuration of the present invention includes a first mounting board having a bent portion at the end, and a side wall portion that continuously surrounds the bent portion of the first mounting base from the side end surface to the outer surface at the peripheral edge. ,
a second mounting board having a die-cut hole formed in a portion opposite to the tip of the bent part; and a buffer rubber filled and fixed between the two mounting boards with a predetermined distance from the bent part of the first mounting board. One mounting board is mounted to the vehicle body, and the other mounting board is mounted to the power plant, thereby elastically supporting the power plant, and also supporting the power plant in the longitudinal and lateral directions due to the contact between the bent part and the side wall part. The movement is restricted, and the punched hole allows the cushioning rubber to be vulcanized and bonded.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

1 and 2, 1 and 1 are left and right frames extending in the longitudinal direction of the vehicle body, 2 is a subframe installed between the left and right frames 1 and 1, 3 is an engine, and 4 is the rear end of the engine 3. transmission connected to the section, 5,5
is a bracket 6 on each inner side of the left and right frames 1, 1.
．． 6 is a front power plant support device installed in an inclined state toward the center side in the left-right direction of the vehicle; 7 is a rear power plant support device installed directly on the subframe 2; power plant support equipment5. 5. The engine 3 and the transmission 4 are integrally and elastically supported by the engine 7.

As shown in detail in FIGS. 3 to 5, the front power plant support device 5 includes first and second mounting boards 8, 9 that are substantially rectangular and facing each other in parallel, and both mounting boards. 8,
Buffer rubber 10 filled and fixed between 9 and 9 by vulcanization adhesive method
It consists of

The mounting boards 8 and 9 have different wall thicknesses, and the outer end of the thicker first mounting board 8 in the left-right direction of the vehicle body is provided with a folded edge formed by bending the outer end inward at a substantially right angle. The song is part 11,
It is formed at a predetermined distance from the buffer rubber 10 (an interval that does not inhibit the deformation of the buffer rubber 10 when it is compressed and deformed).

On the other hand, the peripheral portion of the thin second mounting board 9 is provided with the first mounting board 9.
A side wall portion 12 consisting of three side surfaces continuously surrounding the bent portion 11 of the mounting board 8 from the side end surface to the outer surface is formed by drawing processing, and the second mounting board 9
A rectangular die-cut hole 13 is bored in a portion facing the tip of the bent portion 11.

Thus, the first mounting board 8 is mounted to the side wall surface of the engine 3 via the bracket 25 by stud bolts 14 implanted in the mounting board 8, while the second mounting board 8 is mounted to the side wall surface of the engine 3 via the bracket 25.
The mounting board 9 is attached to the frame 1 via the bracket 6 using stud bolts 15 implanted in the mounting board 9.

Incidentally, the above-mentioned vulcanization adhesion method means, as shown in FIG.
6b, and the flat parts and bent parts 11 of the first and second mounting boards 8 and 9.
After applying adhesive to the inner surface of the side wall portion 12, the upper mold 16a and the lower mold 16b are stacked, and molten rubber (not shown) is poured into the gaps 17a, 17b, and 17c between them. The rubber is vulcanized and solidified within the gaps 17a, 17b, and 17c.

At this time, since a part of the upper die 16a extends from the die-cut hole 13 of the second mounting board 9 to the inner side of the bent part 11 of the first mounting board 8, the buffer rubber 10 is Part 1
1 and the first and second mounting boards 8, 9 spaced apart from each other by a predetermined distance.
will be formed between.

Further, in FIGS. 4 and 5, 18a and 18b are vulcanized and bonded to the inner surface of the bent portion 11 of the first mounting board 8 and the inner surface of the side wall portion 12 of the second mounting board 9 at the same time as the buffer rubber 10. The bent portion 1 of the first mounting board 8 is made of rubber that is bent when the engine 3 or the like moves in the left-right direction or rolls.
1, the buffer rubber 10 and the side wall portion 12 of the second mounting board 9
It has the function of preventing direct collision with the inner surface, suppressing the generation of noise, and absorbing and mitigating the collision.

The rear power plant support device 7 has basically the same configuration as the front power plant support device 5, but the front power plant support device 7 has two stopper function parts between the mounting boards. It is different from the plant support device 5.

That is, as detailed in FIGS. 7 and 8, the first
Bent portions 20 are provided at both ends of the mounting board 19 in the longitudinal direction of the vehicle body.
20 are formed with a predetermined distance from the buffer rubber 21, respectively.

On the other hand, a side wall portion 23 is formed around the entire periphery of the second mounting board 22 and continuously surrounds the bent portion 20.20 from the side end surface to the outer surface. A die-cut hole 24, 24 is bored in a portion facing the tip of the bent portion 20.

Thus, the first mounting board 19 is attached to the transmission 4, while the second mounting board 22 is attached to the subframe 2.

Although omitted in this embodiment, as in the support device 5, rubber is bonded to either the bending part 20 or the side wall part 23, which is a stopper function part, to prevent direct contact between the two. is preferred.

Next, to explain the operation of the above embodiment, the engine 3 and transmission 4 (wayuru power plant)
When the vibrations are relatively small, an external force acts on each power plant support device 5, 7 due to the vibration.
The elastic deformation of 0.21 is absorbed and relaxed and is hardly transmitted to the subframe 1 or the subframe 2, that is, to the vehicle body.

At that time, side wall portions 12.23 are formed at the peripheral edges of the second mounting boards 9, 22 of the respective power plant support devices 5, 7, and the side wall portions 12.23 are formed on the first mounting boards 8, 22, respectively. Since the length is relatively short enough to surround the bent portions 11.20 of 19, when the buffer rubber 10.21 is compressed and deformed, the tips of the respective side wall portions 12.23 are connected to the first mounting substrate 8.
, 19 to the mounting member side, that is, the power plant side.

Therefore, there is no need to pay special consideration to the attachment of the first mounting boards 8, 19 and even the attachment of the power plant support devices 5, 7 themselves, and the work of attaching the power plant support devices 5.7 can be easily performed.

Furthermore, the bent portions 11 and 2 of each of the first mounting boards 8 and 19 are
0 is provided at a position with a predetermined distance from the buffer rubber 10.21, so that the bent portion 11.20 and the buffer rubber 10.21 come into contact when the buffer rubber 10.21 is compressed and deformed. Therefore, the vibration absorption and relaxation effect of the buffer rubber 10.21 is not inhibited.

On the other hand, when the power plant moves significantly relative to the vehicle body, the movement in the left and right direction is mainly carried out by the front power plant support devices 5, 5, and the movement in the longitudinal direction is mainly carried out by the power plant support device 7 on the rear side. First mounting board 8 respectively
, 19 and the side wall portions 12, 23 of the second mounting substrates 9, 22 collide with each other, thereby restricting their movement.

At this time, a moment load acts on each of the second mounting boards 9.22 through the respective side wall portions 12.23, but since the lengths of the side wall portions 2, 23 are relatively short as described above, The moment load is small, and the side wall portions 12, 23 do not curve outward even after repeated collisions.

Incidentally, the moment load also acts on each of the first mounting boards 8 and 19 through their bent portions 11.20, but the wall thickness of the first mounting boards 8 and 19 is relatively thick, and Since the length of the bent portion 11.20 is also short, the bent portion 11.
．． 20 will not curve inward.

Moreover, the power plant support device 5.7 as described above can be attached to the first and second mounting boards 8 by vulcanization bonding using the die-cut holes 13, 24, 24 of the second mounting boards 9, 22.
, 9 or 19.22 and is simply constructed by filling and fixing the buffer rubber 10.21 between them, the manufacturing itself is simple and can be implemented at low cost.

In the above embodiment, the first mounting boards 8 and 19 were mounted on the power plant, and the second mounting boards 9 and 22 were mounted on the vehicle body (frame 1 or subframe 2).
Attach the mounting boards 8, 19 to the vehicle body, and attach the second mounting boards 9, 2 to the vehicle body.
2 may of course be attached to the power plant.

Further, in the above embodiment, the front power plant support devices 5, 5 function to restrict the movement of the power plant in the left and right directions, and the rear power plant support device 7 functions to restrict the movement of the power plant in the front and back direction. However, for example, when the front power plant support device 5 restricts movement in the front-back and left-right directions, the side end surface of the bent portion 11 of the first mounting board 8 or the side wall portion opposite to the side end surface It is preferable to fix rubber to the inner surface of the bending part 11 to suppress the generation of noise caused by the collision between the side end surface of the bent part 11 and the side wall part 12, and to absorb and alleviate the collision.

As explained above, according to the present invention, with the simple structure of forming a bent part at the end of the first mounting board,
Conversely, since the length of the side wall of the second mounting board can be shortened, deformation of the side wall due to repeated collisions with the first mounting board can be prevented, and durability can be improved. The installation work can be easily performed without special consideration, and workability can be improved.

Furthermore, since the manufacturing itself is simple, it also has the advantage of being able to be implemented at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic plan view showing the state in which the power plant is supported, Fig. 2 is a schematic side view thereof, and Fig. 3 is a perspective view of the front power plant support device. Figure 4 is a plan view of the same, Figure 5 is a sectional view taken along the line ■-■ in Figure 4, Figure 6 is a sectional view for explaining the vulcanization bonding method, and Figure 7 is the rear power plant support. A perspective view of the device, FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7. 1... Frame, 2... Subframe, 3... Engine, 4... Transmission, 5, 7... Power plant support device , 8, 19... first mounting board, 9, 22...
...Second mounting board, 10.21...Buffer rubber, 11,20...Bending part, 12.23...
... Side wall part, 13, 24 ... Die cut hole.

Claims (1)

[Scope of utility model registration request] A first mounting board having a bent portion at an end, and a side wall portion that continuously surrounds the bent portion of the first mounting board from the side end surface to the outer surface at the peripheral edge thereof, and faces the tip of the bent portion. a second mounting board with a punched hole formed in the area to be mounted, and a buffer rubber filled and fixed at a predetermined interval from the bent part of the first mounting board between the surface mounting board; A power plant support device for an automobile, characterized in that one board is mounted to a vehicle body, and the other mounting board is mounted to a power plant.