JPH0322018Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an engine mounting device, and more particularly to a mounting device equipped with a stopper adjustment mechanism for suppressing engine displacement.

[Prior art]

When an engine mounted on a vehicle generates large shaking during sudden starting or sudden braking, a mounting device is provided with a stopper mechanism to prevent displacement due to the shaking from becoming too large.

In this stopper mechanism, as seen in Japanese Utility Model Application No. 18215/1983, two brackets extending from the engine and the body are buffered against each other via stopper rubber. That is, a stopper rubber fixed to a bracket extending from the engine is loosely fitted into a bracket on the body side.
Therefore, since there is a gap between the bracket and the stopper rubber, when there is low vibration such as during normal driving, the bracket and the stopper rubber hardly come into contact with each other, which reduces vibration transmission to the body. However, when suddenly starting or braking, the large drive reaction force causes a large amount of rolling in the engine, causing the elastic rubber to come into contact with the bracket. Therefore, the stopper rubber functions as a stopper to suppress displacement due to rolling, and vibrations transmitted to the body are suppressed from becoming too large.

Therefore, the gap mentioned above is an important element in determining the vibration characteristics of a vehicle, and is carefully determined. By the way, especially in the case of FF vehicles, when the engine is mounted on the body along with the transaxle, it is difficult to set the desired clearance due to tolerances of various tightening parts. Therefore, in order to reduce vibration noise and ensure a predetermined gap, an adjustment means is required to absorb variations during the assembly process.

[Purpose of invention]

An object of the present invention is to easily adjust the gap formed between the bracket and the elastic stopper by devising the position of the mounting hole provided in the elastic stopper.

[Structure of the idea]

In order to achieve this objective, in the mounting device of the present invention, the elastic stopper
The height of the cross section formed when cutting outward from the center line of the mounting hole varies depending on the direction of cutting, and it can be mounted rotatably around the mounting hole. Features.

[Effect of idea]

With the above configuration, as the elastic stopper rotates around the mounting hole, the distance from the mounting hole to the outer peripheral surface of the elastic stopper changes in the direction facing the bracket. As a result, the size of the gap formed by the stopper elastic body and the bracket is adjusted to a predetermined value.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[First Embodiment] As shown in FIG. 1, the mounting device 1 in the first embodiment is for suppressing rolling displacement caused by the engine.
and body 3. Here, a bracket 11 fixed to the cylinder block 21 with bolts 8 extends from the engine 2 side. This bracket 11 is formed into a U-shaped cross section as shown in FIG. It is welded to the bracket 11 so as to

On the other hand, a member 13 that is a highly rigid member is welded to the body 3.
Bracket 14 is fixed with bolt 8. The bracket 14 has support plates 16 and 17 extending substantially perpendicularly to the seat surface provided with the mounting holes 15 for the bolts 8.
It is equipped with Then, the elastic stopper 4 shown in FIGS.
7 and is loosely fitted into a plate 12 welded to a bracket 11. That is, when the mounting device is assembled, the plate 12 is not in contact with the elastic stopper 4.

The elastic stopper 4 is made by vulcanizing and adhering rubber to an inner cylinder 42 that forms a mounting hole 41 through which the bolt 7 passes. The elastic stopper 4 has a rectangular shape, and four projections 43 are provided on each side. These protrusions 43 are located on a line passing through the center O of the mounting hole 41. Also, the distances a, b, c, and d from the center O to each side are all different (for example, a>b>c>d), and these distances a, b, c, and d are shown in Figure 4. As shown in , it corresponds to a part of the height of the cross section formed outward from the center line -' of the mounting hole 41 .

Hereinafter, the effects of this embodiment will be explained based on the drawings.

As shown in FIG. 5, during engine mounting work in the assembly process, the gap e formed between the contact surface of the plate 12 and the elastic stopper 4 can be visually confirmed from the direction perpendicular to the plane of the paper in FIG. . This gap e can be adjusted in four stages by loosening the bolt 7 and rotating the elastic stopper 4, based on the characteristics of the elastic stopper 4 shown in FIG. Therefore,
Even if the gap e deviates from the specified value due to tolerances of various tightening parts, the above-mentioned adjustment is made, so abnormal vibration transmission due to setting errors during mounting can be prevented.

[Second Embodiment] As shown in FIGS. 6 and 7, unlike the first embodiment, the stopper elastic body made of rubber is 4a,
It is divided into 4b. Stopper elastic body 4a
is vulcanized and bonded to the inner cylinder 42, and an elastic stopper 4b is fitted into the elastic stopper 4a. By appropriately selecting the spring constants of these 4a and 4b, it is possible to obtain vibration characteristics that match each vehicle after hitting the stopper.

Note that parts having the same configuration as in the first embodiment are denoted by the same reference numerals, and have the same functions and effects as in the first embodiment.

[Third Embodiment] As shown in FIGS. 8 and 9, the elastic stopper 4c has a circular shape, and the center O of the mounting hole 41 is located eccentrically from the center O' of the elastic stopper 4c. exist. Therefore, by rotating the elastic stopper 4c in the direction of the contact surface of the plate 12, the gap e can be continuously adjusted. Therefore, finer adjustment is possible compared to the first embodiment.

Note that parts having the same configuration as in the first embodiment are denoted by the same reference numerals, and have the same functions and effects as in the first embodiment.

[Brief explanation of the drawing]

1 is a front view showing the arrangement of a mounting device with a stopper function according to a first embodiment of the present invention; FIG. 2 is a partial perspective view showing the mounting relationship of the mounting device of FIG. 1; 3 is a front view showing the elastic stopper of FIG. 1, FIG. 4 is a cross-sectional view of FIG. 3, FIG. 5 is a cross-sectional view of FIG. 2, and FIG. FIG. 7 is a front view of the elastic stopper of the mounting device according to the second embodiment, FIG. 7 is a cross-sectional view of FIG. 6, and FIG. The front view, FIG. 9, is a cross-sectional view taken from FIG. 1...Mounting device, 2...Engine,
3... Body, 4, 4a, 4b, 4c... Elastic stopper, 11, 14... Bracket, 41...
Mounting hole.

Claims (1)

[Scope of utility model registration request] In a mounting device equipped with an elastic stopper that is loosely fitted to a bracket extending from an engine or a body and suppresses vibrational displacement of the engine, when the elastic stopper cuts the mounting hole outward from the center line of the mounting hole. A mounting device characterized in that it is formed in a shape in which the height of the formed cross section varies depending on the direction of cutting, and is mounted rotatably around a mounting hole.