JPS595619Y2 - Engine rocking suppression device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rocking suppression device for an engine mounted on a vehicle such as an automobile.

Conventionally, for the purpose of suppressing the shaking of the engine mounted on a vehicle, there is a device that suppresses the lateral shaking of the engine by using an engine side member installed above the engine and a car body side member installed on the car body side. Opening the engine hood for engine inspection and maintenance will interfere with inspection and maintenance work.
Another drawback is that engine vibrations are transmitted to the vehicle body through this vehicle body side member.

The object of this invention is to provide an engine vibration suppression device that does not have the above-mentioned drawbacks.

In addition, as a prior art for engine vibration isolation, the Utility Application
There are No. 208 and No. 52-106788.

The former relates to a vibration-proof mounting structure when housing and fixing equipment such as an engine inside a case. Cylindrical cushioning members are arranged concentrically on the inner and outer surfaces of the bottom of the case, and the equipment is mounted on the cushioning material inside the case. It is placed and attached with bolts via spacing pipes inserted into both cushions.

The latter is an insulator used to support the engine at the bottom, and includes a roll stopper formed by bending a vehicle body structural member, and an insulator plate provided on the engine side that engages with the roll stopper with a predetermined gap. , and an elastic member interposed between the insulator plate and the roll stopper.

This invention will be explained below based on drawings showing embodiments.

In FIGS. 1 and 2 showing the first embodiment of this invention, 1 is an in-line engine, 2 is a body, and the engine 1
is attached to the body 2 by engine mounts 3, 3 on both sides of its front part.

Note that the engine 1 is connected to a transmission (not shown) at its rear end.

A column 4 having a circular cross section is suspended from the cylinder head power bar 1a of the engine 1 by its disk-shaped mounting portion 4a and bolts 5, and a ring-shaped stopper rubber 6 is attached to the upper end of the column 4. There is.

Reference numeral 7 denotes an engine hood, and a ring-shaped stopper bracket 8 surrounding the stopper rubber 6 is attached to the lower surface of the central portion of the engine hood.

Stopper members 9 are attached to both sides of the engine hood 7 in the longitudinal direction of the vehicle, and a stopper rubber 10 that can come into contact with the stopper members 9 is attached to the body 2 on the outside of the stopper members 9.

Note that 1 is a cooling fan and 12 is an air cleaner.

When engine 1 operates in the above structure, engine 1
sways horizontally and yaws.

For horizontal vibration, one set of stopper rubber 6 and stopper bracket 8
This is reduced by the first shock absorbing mechanism, which imparts left-right movement to the engine hood 7.

This movement in the left and right direction is carried out by a set of stopper members 9 and steps 1 to 1.
The second shock absorbing mechanism made of Tsupa rubber 10 reduces the force and transmits it to the body 2.

In other words, the lateral vibration of the engine 1 is caused by the first shock absorbing mechanism and the second shock absorbing mechanism.
is suppressed by the buffer mechanism and transmitted to the body 2.

When two sets of first shock absorbing mechanisms are used in the longitudinal direction of the engine 1, the rocking of the body 2 due to the yaw motion of the engine is reduced.

When the engine hood 7 is opened for engine inspection and adjustment, the stopper bracket 8 is far away from the stopper rubber 6.
Inspect both the stopper rubber 6 and the stopper bracket 8.
Does not interfere with adjustment work.

FIG. 3 shows a second embodiment of this invention.

Note that the same reference numerals are given to the same structural elements as in the first embodiment, and the explanation thereof will be omitted.

In Fig. 3, each side of the engine hood 7 has one
A ring-shaped hood stopper 13 is provided in which the suspension rod 15 of the shock absorber 14 is inserted.
is inserted.

The suspension rod 15 is attached to the body 2 via a ring-shaped suspension support rubber 16.

In the second embodiment as well, the lateral vibration of the engine 1 is reduced and transmitted to the engine hood 7 via the first buffer mechanism consisting of the stopper rubber 6 and the stopper bracket 8, and the left-right movement of the engine hood 1 is transmitted to the hood stopper 13 and further to the suspension rod. 15 and a second shock absorbing mechanism consisting of suspension support rubber 16, the vibration is reduced and transmitted to r-2.

That is, the lateral vibration of the engine 1 is suppressed by the first and second shock absorbing mechanisms.

As in the first embodiment, if two sets of first shock absorbing mechanisms are used in the longitudinal direction of the engine 1, the body 2 will be affected by the yaw motion of the engine 1.
oscillation becomes smaller.

This idea is based on an engine whose rear end is connected to the transmission and whose front end is supported by engine mounts on the body as described above. A first shock absorbing mechanism is provided between the engine hood and the engine hood, and a second shock absorbing mechanism is provided between the engine hood and the body, which greatly reduces the transmission of engine lateral vibration and yaw vibration to the body. This has the effect of reducing the amount of water used, and also allows engine inspection and maintenance to be carried out smoothly.

[Brief explanation of the drawing]

Fig. 1 is a front view of the first embodiment of this invention, and Fig. 2 is a front view of the first embodiment of the invention.
A sectional view taken along the line II--II in the figure, and FIG. 3 shows a front view of the second embodiment. 1...Engine, 2...Body, 3.
...Engine mount, 4...Strut, 7
... Engine hood, {6 ... Stopper rubber, 8 ... Stopper bracket} First buffer mechanism, {9 ... Stopper member, 10 ...・
...Stotsuhacom}Second buffer member, 13...
Hood stopper, {15... Suspension rod}', 1B... Suspension support 1, rubber} Second buffer mechanism.

Claims (1)

[Scope of utility model registration request] The rear end is connected to the transmission, and both sides of the front part are supported by engine mounts on the body. A support is hung above the engine, a stopper rubber is attached to the upper end of the support, and the stopper rubber is surrounded by the engine hood. A stopper bracket is attached to form a first buffer mechanism, a stopper member or stopper rubber is attached to both side edges of the engine hood, and another stopper rubber or stopper member that contacts the side of the stopper member or stopper rubber is attached to the body of the vehicle. 1. An engine rocking prevention device, characterized in that it is attached to a second shock absorbing mechanism.