JPH059552Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is for installing an engine mount that is inserted between the engine mount and the mounting bracket for attaching it to an automobile body, etc., so that they do not come into direct contact with each other. The present invention relates to an elastic stopper device.

[Prior Art] A power unit including an engine is supported in a vibration-proof manner on a vehicle body such as an automobile by an engine mount.

For example, as shown in FIG. 4, the engine mount 1 generally has a structure in which a rubber elastic body 4 is fixed between an inner cylindrical metal fitting 2 and an outer cylindrical metal fitting 3, which is shorter than the inner cylindrical metal fitting 2. Inner cylinder metal fitting 2 of this engine mount 1
Either the power unit including the engine or the vehicle body is fixed to the outer cylindrical fitting 3 using various mounting brackets, and the transmission of vibrations is suppressed by the rubber elastic body 4. Therefore, voids 5 are often formed in the rubber elastic body in order to efficiently damp vibrations in the vertical direction of the vehicle body. In FIG. 4, a power unit (not shown) is suspended and fixed to the outer cylindrical metal fitting 3 using a cylindrical bracket 6, and both ends of the inner cylindrical metal fitting 2 are fixed to a frame-shaped bracket 7, which is fixed to the vehicle body 9, using bolts 8, etc. Shown is installed.

By the way, in such an engine mount 1, the rubber elastic body 4 is excessively deformed due to sudden acceleration or deceleration of the automobile, vertical vibration, etc., and the engine mount 1 is excessively displaced with respect to the frame-shaped bracket 7. In this case, the outer cylindrical metal fitting 3 is a frame-shaped bracket 7.
may come into direct contact with the Therefore, in order to prevent excessive displacement of the engine mount 1 or contact with the frame-shaped bracket 7, disk-shaped elastic stoppers 10 may be inserted into both ends of the inner cylindrical metal fitting 2 of the engine mount 1. This has been done traditionally.

[Problem that the invention attempts to solve]

However, the conventional elastic stoppers 10 tend to fall off from the inner cylindrical fitting 2 while being inserted into both ends of the inner cylindrical fitting 2 and being transported to the next process.
Therefore, in order to prevent the elastic stopper 10 from falling off during transportation, the elastic stopper 10 was fixed to the inner cylindrical metal fitting 2 with an adhesive or the like, but there was a problem in that the workability was extremely poor.

Therefore, in consideration of such conventional circumstances, the present invention has been developed to prevent the engine mount from falling off from the inner cylinder fitting during transportation etc. during the installation work of the engine mount to the vehicle body, and to make the work easier as it is easy to insert into the inner cylinder fitting. The purpose of the present invention is to provide an excellent elastic stopper device for attaching an engine mount.

[Means for solving problems]

The elastic stopper device for installing an engine mount of the present invention has two plate-shaped elastic stoppers each having an insertion hole large enough to insert the inner cylindrical metal fitting of the engine mount in the direction of the center line of each insertion hole on one plane. were arranged parallel to each other, and these two elastic stoppers were connected on both sides of the straight line connecting both insertion holes with string-like elastic connecting members of a length that could hold each elastic stopper at both ends of the inner cylindrical metal fitting. It is characterized by

The shape of each elastic stopper according to the present invention may be rectangular or circular as long as it has an appropriate thickness to prevent excessive displacement of the engine mount. However, in order to prevent collisions between the engine mount outer cylinder fittings and the mounting bracket due to excessive displacement, the elastic stopper should be made into a long and thin plate, and the length should be extended from the center of the insertion hole to at least one of the longest ends. It is preferable that the length be longer than the radius of the outer cylinder fitting of the engine mount, and the length from the center of the insertion hole to both longest ends extending in a straight line should both be longer than the radius of the outer cylinder fitting of the engine mount. Longer lengths are most preferred.

In addition, the length of the string-like elastic connecting member that connects the two elastic stoppers must be long enough to hold each elastic stopper at both ends of the inner cylindrical metal fitting with almost no deformation or with some tension. be. Therefore, if the length from the center of the insertion hole of the elastic stopper to the longest end is slightly longer than the radius of the outer cylindrical fitting, the elastic connecting member should be approximately the same length as the outer cylindrical fitting or slightly shorter. However, if the radius is shorter than the radius of the outer cylindrical metal fitting, the elastic connecting member is lengthened by a length approximately corresponding to the shorter radius.

〔Example〕

A rubber elastic stopper device having the shape shown in FIGS. 1 and 2 was manufactured by hot-flow molding using a molding die.

This elastic stopper device consists of two integrally molded elastic stoppers 11 and two elastic connecting members 14 that connect them.

Each elastic stopper 11 has an elongated substantially rectangular plate shape, and has an insertion hole 12 approximately in the center thereof large enough to allow insertion of the inner cylinder metal fitting of the engine mount. Moreover, each elastic stopper 11 has an insertion hole 12.
The length between the longest ends 13 in both directions on a straight line passing through the engine mount is longer than the outer diameter of the outer cylinder metal fitting of the engine mount. These two elastic stoppers 11
The directions of the straight lines connecting the respective longest ends 13 are parallel, the center line directions of the respective insertion holes 12 are parallel, and the distance between both insertion holes 12 is approximately equal to the length of the outer cylinder metal fitting. The two elastic stoppers 11 arranged in this state are symmetrical with respect to the straight line connecting the two insertion holes 12. They are connected by elastic connecting members 14 at two locations.

[Effect]

In the elastic stopper device of the present invention, the elastic connecting members are arranged in parallel so that the directions of the center lines of the insertion holes 12 are parallel to each other, and are arranged at two points symmetrical to the straight line connecting both insertion holes 12. Since the shape is connected by 14, it can be manufactured using the simplest and smallest molding mold having a two-part structure.

When inserting this elastic stopper device into an engine mount, as shown in FIG. Pull the elastic stopper 11 of the two insertion holes 12
Twist the elastic connecting member 14 so that it is in a straight line.
While deforming the elastic stopper 11, the insertion hole 12 of the elastic stopper 11 is inserted into the other end of the inner cylinder fitting 2.

In this way, both elastic stoppers 11 are inserted into both ends of the inner cylindrical metal fitting 2 of the engine mount 1.
are connected to each other in a stretched state by the elastic connecting member 14 so that the distance between the opposing longest ends 13 is approximately equal to or slightly shorter than the length of the outer tubular metal fitting 3, and therefore will not come off from the inner tubular metal fitting 2 even if it is not fixed with adhesive. Therefore, unless it is forcibly removed, there is no danger of the elastic stopper device of this invention falling off from the inner tubular metal fitting 2 during normal operations such as transporting the engine mount 1.

The elastic stopper of the elastic stopper device of the present invention only needs to be thick enough to restrict the displacement of the engine mount due to vibration between the mounting bracket and the rubber elastic body of the engine mount, for example around the insertion hole. It is also possible to make only the thickness necessary for regulating displacement and make the other parts thinner.

[Effect of idea]

The elastic stopper device of the present invention can be manufactured at low cost using a simple mold, and when attaching the elastic stopper device to the engine mount, there is no need to apply adhesive as in the past, making it easy and efficient to install. Moreover, once installed, the elastic stopper device will not fall off from the inner cylinder metal fitting during the transportation of the engine mount during the installation work of the engine mount to the vehicle body.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the elastic stopper device of the present invention, and FIG. 2 is a side view thereof. FIG. 3 is a plan view showing the state in which the elastic stopper device of the present invention is inserted into an engine mount, with one side of the elastic stopper cut away. FIG. 4 is a sectional view showing a state in which an engine mount with a conventional elastic stopper inserted therein is attached to a vehicle body. 1...Engine mount, 2...Inner cylinder metal fitting, 3
... Outer cylinder metal fitting, 4 ... Rubber elastic body, 6 ... Cylindrical bracket, 7 ... Frame-shaped bracket, 9 ... Vehicle body, 10, 11 ... Elastic stopper, 12 ... Insertion hole, 14 ... Elastic connecting member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) When fixing either the power unit including the engine or the vehicle body using a mounting bracket to the inner and outer cylinder fittings of the engine mount, the inner cylinder metal fittings of the engine mount In an elastic stopper device for attaching an engine mount, which is inserted into both ends of the
Two elastic stoppers are arranged side by side on one plane so that the direction of the center line of each insertion hole is parallel to each other, and the two elastic stoppers are placed on both sides of the straight line connecting both insertion holes, and the elastic stoppers are placed at both ends of the inner cylindrical metal fitting. The above-mentioned elastic stopper device for attaching an engine mount is connected by a string-like elastic connecting member having a length that can be held in the engine mount. (2) Utility model registration claim (1) characterized in that the length from the center of the insertion hole of the elastic stopper to at least one longest end is longer than the radius of the outer cylinder fitting of the engine mount. Elastic stopper device for installing the engine mount as described.