JPS5822417Y2 - Stopper for vibration isolator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a stopper for a vibration isolator.

Conventionally, when a marine internal combustion engine or the like is vibration-proofly supported on an engine stand or the like via anti-vibration rubber or the like, it has been supported as shown in the plan view in Fig. 1, the enlarged plan view in Fig. 2, and the enlarged side view in Fig. 3. In addition, vibration isolating rubber 3 is sandwiched between an upper member 2 to which the internal combustion engine is attached and a lower member 4 to be attached to the hull (not shown), and stopper members 1A are provided at the four corners of the upper member 2. Stopper members IB are also fixed to the four corners of the lower member 4 at corresponding positions with bolts.

Moreover, these stopper members 1A and 1B.

Collision surfaces 5A and 5B facing each other with a gap 6 between them
are formed parallel to the vertical axis of the internal combustion engine, which is a support, and a vibration-proof lining 7 is attached to these collision surfaces 5A, 5B).

Furthermore, as shown in FIG. 2, these collision surfaces 5A, 5B
is tilted at 45 degrees with respect to the horizontal axis of the support, so if the ship's hull rolls or pitches violently, it limits the amplitude of abnormal displacement of the anti-vibration rubber 3 in the left-right and front-back directions, protecting the anti-vibration rubber. are doing.

However, although the stopper members 1A and 1B for the vibration isolator are capable of limiting the abnormal displacement amplitude in the left-right direction and the front-back direction, they are not designed to limit the abnormal displacement amplitude in the vertical direction. Against ship jumping,
Stopper part IA.

There was a drawback that 1B did not operate effectively.

Therefore, in order to eliminate the above-mentioned conventional drawbacks, the present invention aims to provide a stopper for a vibration isolator that can limit the abnormal displacement amplitude in the horizontal direction and also limit the abnormal displacement amplitude in the vertical direction using the same stopper. This is the purpose.

That is, the present invention provides a vibration isolator having a stopper,
The collision surface of the stopper is inclined at 45 degrees with respect to the horizontal axis of the support of the vibration isolator, and also at an angle of 3 degrees with respect to the vertical axis.
It is constructed by tilting from 0° to 45°.

Embodiments of the present invention will be described below with reference to the drawings.
Components that are the same as those in the conventional example from the figures to FIG. 3 are indicated by the same part numbers.

First, the vibration isolating device in the embodiment of the present invention shown in FIGS. 4 to 7 has the same structure as the conventional example shown in FIGS. 1 to 3, but the difference is that the stopper The collision surfaces 5A and 5B formed on members IA and 1B are oriented at 45 degrees with respect to the horizontal axis of the support as shown in FIG.
In addition to being inclined at an angle of 30° to 45° relative to the vertical axis of the support, as shown in FIG.

Thereby, the stopper members IA and 1B of the present invention can also have a stopping effect in the vertical direction even when the support thereof vibrates in the vertical direction.

Therefore, if the stopper for a vibration isolator of the present invention is applied,
The same stopper makes it possible to limit the abnormal displacement amplitude in two horizontal directions and the vertical direction, which has the effect of protecting the support and extending the life of vibration isolating materials such as vibration isolating rubber. .

In particular, if the stopper for a vibration isolator of the present invention is applied to a marine engine, etc., the same stopper can limit the abnormal displacement amplitude within its limit range even when the ship is rolling, pitching, and jumping. There is.

[Brief explanation of drawings]

1, 2, and 3 are a plan view showing the overall arrangement of a stopper for a vibration isolator in a conventional example, an enlarged plan view of the main part of FIG. 1, a side view of FIG. 2, and FIG. 4. , FIG. 5, FIG. 6, and FIG. 7 are a plan view showing the overall arrangement of a stopper for a vibration isolator according to an embodiment of the present invention, and FIG.
They are an enlarged plan view of the main part of the figure, a partial side view in direction A of FIG. 4, and a side view of FIG. 5. IA, IB... Stopper 1 member, 2...
・Upper member, 3... Anti-vibration rubber, 4...
Lower member, 5A, 5B...Collision surface.

Claims (1)

[Scope of utility model registration request] In a vibration isolator having a stopper, the collision surface of the stopper is inclined at 45° with respect to the horizontal axis of the support of the vibration isolator, and is also tilted at an angle of 30° to 45° with respect to the vertical axis.
Tilt stopper for vibration isolator