JPH06307487A - Vibration proofing mount for vehicle - Google Patents

Abstract

PURPOSE:To prevent slipping-off of a stabilizer and deformation of a mounting member on the car-body side in a mount for limiting deformation of a rubber elastic body by engaging a stopper member extending from one plate connected through the rubber elastic body with the stabilizer extending from the other plate. CONSTITUTION:A stopper member 14 extending outside is provided on the circumference of an upper plate 1, a flange-like plate-fixing part 15 is extended outside from a lower plate 2, and a stabilizer 16 is formed so as to surround the stopper member 14 by the plate-fixing part 15 and the stabilizer. Further, a fixing part 17 of the stabilizer 16 is fixed integrally with the plate-fixing part 15 to a mounting member S.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antivibration mount for a vehicle, and more particularly to an antivibration mount having a stopper mechanism for preventing the rubber elastic body from being deformed beyond a certain limit.

[0002]

2. Description of the Related Art An anti-vibration mount for a vehicle is an anti-vibration support device which is interposed between a vehicle body and an engine, or between a vehicle body and a suspension member, and which prevents vibrations of the engine and underbody from being transmitted to the vehicle body. In general, a stopper mechanism is provided to prevent deformation of the rubber elastic body beyond a certain limit.

An example of such an anti-vibration mount is shown in FIG.
An engine mount such as that disclosed in Japanese Utility Model Laid-Open No. 5-22896 is well known. This mount is
A pair of upper and lower plates 21 and 22 provided apart from each other
A rubber elastic body 23 is interposed between the metal plate and the metal plate integrally extending from the cylindrical lower plate 22 so as to project a part in the radial direction to form the stopper portion 24, and By the metal fitting 25 provided, the stopper 2
4 has a structure in which a stabilizer 26 is formed so as to cover the same with a predetermined gap provided therebetween.

That is, in this vibration-proof mount, due to the contact between the stopper portion 24 and the stabilizer 26, the rubber elastic body 23 is deformed in the vertical direction by compression and tension, and in the lateral direction, and is slanted. With respect to bending deformation to which compression is applied, each has a characteristic of preventing deformation exceeding a certain limit.

[0005]

However, in the above-mentioned vibration-proof mount, the stopper portion and the stabilizer are brought into contact with each other only on one side of the mount, and this stabilizer is mounted on the upper plate as shown in the drawing. If the mount is subjected to an extremely large load or large displacement due to being fixed by the bolts of the book, the stabilizer may be deformed and the rubber elastic body may be broken due to the so-called removal of the stabilizer. Have

Further, in the above-mentioned vibration proof mount, as shown in the figure, since it is constructed so as to be attached to the vehicle body side by one bolt provided on the lower plate, an extreme load is continuously applied to the one-sided stopper mechanism. In this case, the mounting member on the vehicle body side may be deformed.

The present invention has been made in consideration of the above-mentioned actual situation, and by finding a new structure in the stopper mechanism of the vibration proof mount, it is possible to prevent it by supporting at least two points on the vehicle body side mounting portion. An object of the present invention is to fix the vibration mount main body and the stabilizer over substantially the entire circumference thereof, thereby preventing the stabilizer from coming off and the vehicle body side mounting member from being deformed.

[0008]

That is, a feature of the vehicle vibration-proof mount of the present invention which meets the above-mentioned object is that a pair of upper and lower plates which are spaced apart from each other and an interposition between these plates are provided. In a vehicle vibration-damping mount, comprising: a rubber elastic body, wherein each of the plates is fixed to a supporting-side or supported-side mounting member, the upper plate includes:
A stopper member that extends outward from substantially the entire circumference of the plate is provided, and the stopper member extends outward from the substantially entire circumference of the lower plate.
A stabilizer is formed around the stopper member by forming a predetermined gap below the stopper member, extending a flange-shaped plate fixing portion, and further forming a predetermined gap outside and above the stopper member on the lower plate. And a flange-shaped stabilizer fixing portion is extended outward from the stabilizer, and the stabilizer fixing portion and the plate fixing portion are provided so as to be integrally fixed to the mounting member.

[0009]

In the vibration isolating mount of the present invention described above, since the fixing portion of the lower plate is provided around the flange, it is possible to support and fix the mounting member at two or more points with the conventional bolt. The deformation of the mounting member can be suppressed more effectively than the fixing.

Further, since the fixing portion of the stabilizer is also formed in a flange shape so as to be fixed together with the plate fixing portion, the stabilizer can also be supported and fixed at two or more points, and an excessive load can be applied. It is possible to disperse the stabilizers at a plurality of locations to suppress the deformation and effectively prevent the stabilizer from slipping out as in the conventional case.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view, partially in section, showing a liquid filled vibration damping mount for a vehicle according to an embodiment of the present invention.
The upper plate 1 includes a circular upper plate 1 and a cylindrical lower plate 2 which are arranged apart from each other, and a vibration-damping base body 3 made of a rubber elastic body that is vulcanized and bonded between these plates. The mounting member on the engine side is fixed by the bolt 4, and the mounting member S on the vehicle body side is fixed to the lower plate 2 via a plate mounting portion 16 described later.

In this embodiment, a liquid filled type is used as the vibration isolation mount, and a diaphragm 5 made of a rubber film is provided in the lower opening of the lower plate 2.
Are liquid-tightly attached to form a liquid chamber 6. This diaphragm 5 has a liquid chamber 6 in order to increase its deformation amount.
It is formed in a substantially spherical shape that bulges to the side. Further, in the figure, 7 is a partition plate, and the partition plate 7 forms an orifice 8 with its peripheral portion and a part of the vibration-proof base body 3 and is in a state of being communicated with the communication hole 9 of the orifice. The liquid chamber 6 is divided into an upper liquid chamber 10 and a lower liquid chamber 11. A bowl-shaped diaphragm cover 12 is attached to the lower end of the lower plate 2 by caulking the lower end of the lower plate 2. The description of the anti-vibration effect by the liquid filling method is omitted here.

On the other hand, according to the present invention, in the vibration-proof mount as described above, the hat-shaped metal fitting 1 is attached to the upper plate 1.
By crowning 3, the circular stopper member 14 that extends outward from the entire circumference of the upper plate 2 is fixed, and the stopper member 14 extends outward from the entire upper circumference of the lower plate 2. Form a predetermined gap below the
The flange-shaped plate fixing portion 15 is extended. The lower plate 2 is provided with a stabilizer 16 formed of a perforated hat-shaped metal fitting that surrounds the entire circumference of the stopper member 14 with a predetermined gap formed outside and above the stopper member 14, and further, This stabilizer 1
6 Stabilizer fixing part 17 in a flange shape outward from the entire circumference
Is integrally extended, and the stabilizer fixing portion 17 and the plate fixing portion 15 can be integrally fixed to the mounting member S on the vehicle body side.

The stabilizer 16 integrated with the fixing portion 17 is bolted to the vehicle body side mounting member S through bolt holes 18 which are equally formed at two to three places along with the plate fixing portion 16. It In addition, this stabilizer 16
Is integrated with the plate fixing portion 15 through the fixing portion 17 by welding or the like, but may be separated as a separate body before being fixed to the mounting member S. In addition, on the outer peripheral portion of the stopper member 14, a stopper rubber 1 for cushioning is provided.
9 is attached.

However, the anti-vibration mount of the embodiment having the above-mentioned configuration is such that half of the anti-vibration mount is embedded in the vehicle body side mounting member S having the recess S ₁ as shown in the figure, and the lower plate 2 of this mount is fixed. At the same time, a mounting member (not shown) on the engine side is fixed to the bolt 4 of the upper plate 1.

In the vibration proof mount of the above embodiment,
When an excessive load is applied in the axial direction of the mount, the stopper member 14 causes the plate fixing portion 15 or the stabilizer 16
By making contact with the upper wall 16a and by making the stopper member 14 make contact with the side wall 16b of the stabilizer 16 against an excessive radial load, it is possible to limit the deformation of the anti-vibration base body, respectively. .

In this case, in the present invention, since the fixing portion 15 of the lower plate 2 is provided around the flange, it is possible to support and fix the mount to the vehicle-side mounting member S at two or more points, which is the same as the conventional bolt. It is possible to prevent the deformation of the mounting member S by dispersing the force applied to the mounting member S as compared with the fixing by single tightening.

Further, since the fixing portion 17 of the stabilizer 16 is also provided around the flange in the same manner and is fixed together with the plate fixing portion 15, the stabilizer 16 is provided.
Similarly, it becomes possible to support and fix at two or more points, and it is possible to prevent excessive deformation of the load by dispersing the excessive load at a plurality of places and effectively preventing the stabilizer from slipping out.

Further, in the mount according to the embodiment of the present invention, since the bolt of the lower plate 2 is eliminated and the mount is embedded in the mounting member S, the mount space can be increased in the height direction. On the other hand, by wrapping the anti-vibration substrate 3 of the mount with the stabilizer metal fitting 16, there is also an effect that deterioration of rubber due to radiant heat of the engine can be suppressed. Further, the stopper clearances in the vertical and horizontal directions can be freely changed only by changing the shape of the stabilizer 16, and it is possible to extremely easily adjust the vehicle type.

[0021]

As described above, according to the vehicle vibration-proof mount of the present invention, the outwardly extending stopper member is provided around the upper plate connected to the lower plate via the elastic body, and A flange-shaped plate fixing portion is extended outward, and a stabilizer surrounding the stopper member is formed with the plate fixing portion, and the fixing portion of the stabilizer is fixed to the mounting member integrally with the plate fixing portion. Since the plate fixing portion is provided in the shape of a flange, it is possible to support and fix the mount at two or more points with respect to the mounting member. The force is dispersed to prevent the mounting member from being deformed, and the fixing portion of the stabilizer is also provided in the form of a flange in the same manner as the plate fixing portion. Since this stabilizer is also fixed to two or more points, this stabilizer can also be supported and fixed at two or more points, and excessive load can be dispersed at multiple points to suppress its deformation and effectively prevent the stabilizer from falling out as in the past. It has a remarkable effect of preventing. Also, by eliminating the bolts on the lower plate, space is provided in the height direction of the mount, and by wrapping the rubber elastic body of the mount with a stabilizer, deterioration of rubber due to radiant heat of the engine is also suppressed. Further, the stopper clearances in the vertical and horizontal directions can be freely changed only by changing the shape of the stabilizer, and there is an effect that the adjustment for each vehicle type can be made extremely easy.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing a liquid filled vibration damping mount for vehicles according to an embodiment of the present invention.

FIG. 2 is a sectional front view showing a conventional example.

[Explanation of symbols]

1 Upper Plate 2 Lower Plate 3 Anti-Vibration Base (Rubber Elastic Body) 4 Bolt 5 Diaphragm 6 Liquid Chamber 7 Partition Plate 8 Orifice 9 Communication Hole 10 Upper Liquid Chamber 11 Lower Liquid Chamber 12 Diaphragm Cover 13 Hat-shaped Metal Fitting 14 Stopper Member 15 Plate Fixed part 16 Stabilizer 17 Stabilizer fixed part 18 Bolt hole 19 Stopper rubber S Vehicle body side mounting member S ₁ Recess

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masatsugu Takaoka 3rd Ikagayama, Uchikoshi, Miyoshi-cho, Nishikamo-gun, Aichi Toyo Tire & Rubber Co., Ltd. Automotive Parts Technology Center

Claims (1)

[Claims] 1. A pair of upper and lower plates arranged separately from each other, and a rubber elastic body interposed between these plates, wherein each plate has a supporting side or a supported side, respectively. In the vehicle vibration-proof mount for fixing the mounting member of, the upper plate is provided with a stopper member extending outward from substantially the entire circumference of the plate, and the outer plate is provided with the stopper member extending outward from substantially the entire circumference of the lower plate. A predetermined gap is formed below the stopper member to extend a flange-shaped plate fixing portion, and a stabilizer surrounding the stopper member is formed on the lower plate by forming a predetermined gap outside and above the stopper member. And a flange-shaped stabilizer fixing portion extending outward from the stabilizer, and the stabilizer fixing portion and the plate fixing portion are connected to the mounting portion. An anti-vibration mount for vehicles, which is provided so as to be integrally fixed to a material.