JPH058083U - Controlled anti-vibration mount - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to provide a directionality to the rigidity of a cylindrical vibration-damping mount provided between a vehicle body of an automobile and a suspension, and at the same time, to arbitrarily control this rigidity. To do. [Structure] A liquid chamber (4) is provided symmetrically with the inner cylinder (1) sandwiched between the vibration damping substrate (3) of the mount, and a communication pipe (5) for communicating the symmetrical liquid chamber (4). ) Is provided, and the communication pipe (5) is provided with a control valve (6) capable of adjusting the flow of the liquid filled in the liquid chamber.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an improvement of an anti-vibration mount that is mounted so as to be interposed between a vehicle body and a suspension.

[0002]

[Prior Art]

 A cylindrical anti-vibration mount in which a vibration-isolating base made of a rubber elastic body is integrally fixed between an inner cylinder and an outer cylinder in a concentric arrangement is placed between the vehicle body and the suspension of the vehicle, and is attached to the vehicle body. Widely used as a shock absorber to reduce the transmitted vibration.

In order to stabilize the traveling of an automobile, it is preferable that such a vibration-isolating mount has a spring characteristic with directivity. For example, conventionally, a plate-shaped rigid body is embedded in the vibration-proof substrate, or a vibration-isolating substrate is used. The one that has a directional rigidity by providing a void portion in it is often used as the above-mentioned anti-vibration mount for the legs.

[0004]

[Problems to be solved by the device]

 However, with the above-mentioned conventional anti-vibration mount, although the vehicle generally works well under normal driving conditions, the driving of the vehicle changes variously depending on the road and other conditions. When comparing running and steep turns, the mounts described above could not exhibit spring characteristics that satisfy both running conditions at the same time.

The present invention copes with the actual situation as described above, and in particular, by providing a new structure for the vibration-isolating base of the mount, the rigidity of the mount is given directionality, and at the same time, the rigidity is arbitrarily controlled. The purpose is.

[0006]

[Means for Solving the Problems]

 That is, the feature of the control type vibration damping mount according to the present invention, which is adapted to the above-mentioned purpose, is that the vibration damping mount has a vibration damping base body made of a rubber elastic body between the inner cylinder and the outer cylinder surrounding the inner cylinder. A control valve capable of forming a pair of liquid chambers symmetrically with the inner cylinder sandwiched in the base body, providing a communication pipe for communicating the liquid chambers of the symmetry with each other, and controlling the flow of the liquid filled in the liquid chamber in the communication pipe. I was equipped with.

[0007]

[Action]

 In the vibration proof mount of the present invention having the above-mentioned configuration, when the vehicle turns suddenly, the control valve of the communication pipe is closed and the spring constant in the direction opposite to the liquid chamber is increased to improve the vehicle stability. On the other hand, in the case of normal straight running, open the control valve of the communication pipe to connect the liquid chambers to each other and reduce the spring constant to improve the vibration isolation performance. It is possible to improve the riding comfort of the car.

[0008]

【Example】

 Hereinafter, a control type vibration proof mount according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a right half abbreviated sectional view showing a control type vibration proof mount of an embodiment, and FIG. 2 is a plan view of the same. In the figure, (1) is an inner cylinder, (2) is an outer cylinder, and (3) is these inner and outer parts. Each of the vibration-proof bases vulcanized and bonded between the cylinders (1) and (2) is shown. The vibration-proof base (3) has two liquid chambers (symmetrically paired with the inner cylinder (1) sandwiched therebetween. 4) (one is not shown). The two liquid chambers (4) are communicated with each other by a communication pipe (5) filled with the filled liquid as in the liquid chamber, and the flow of the filled liquid in the liquid chamber (4) is performed in the communication pipe (5). An electrically controlled control valve (6) is provided which is capable of adjusting

In addition, as shown in FIG. 2, the vibration-proof mount has a space (7) formed in the vibration-proof base (3) in order to enhance the rigidity in the AA direction in FIG. Two rigid body plates (8) symmetrically sandwiching the inner cylinder (1) are vulcanized and bonded to the vibration isolating substrate (3) with predetermined gaps (9) respectively. This gap (9) is formed to provide the above-mentioned liquid chamber (4), and as shown in FIG. 3, the stopper rubber (11) is attached to the base plate (10) to which the communication pipe (5) is attached. The liquid chamber (4) formed by fixing the liquid chamber (4) with the seal plate (12) is inserted from above, and the liquid chamber (4) is fixed by caulking the outer body plate (8). There is.

The control type vibration-damping mount of the embodiment of the present invention having the above-mentioned configuration is mounted by being interposed between the vehicle body of the automobile and the suspension. In the case of 1, the control valve (6) of the communication pipe (5) communicating with the liquid chamber (4) is closed, and the spring constant in the AA direction shown in FIG. On the other hand, in the case of normal straight running, by opening the control valve (6) and connecting the liquid chambers (4) to each other to reduce the spring constant, the anti-vibration performance of the mount is improved and the ride comfort of the vehicle is improved. It is possible to tighten.

It is preferable that the valve (6) be opened and closed automatically by a sensor or the like that detects a running state, but it may be opened or closed by a manual button so that the setting can be made according to the driver's preference. Alternatively, the valve (6) may be opened stepwise such as fully open or half open. Further, the pair of liquid chambers (4) sandwiching the inner cylinder (1) is one pair in this embodiment, but it is also possible to provide, for example, two pairs or more.

[0012]

[Effect of the device]

 As described above, in the control type vibration damping mount of the present invention, the vibration damping base body of the mount is provided with the liquid chamber in a pair so as to sandwich the inner cylinder, and the communication pipe for communicating the symmetrical liquid chambers is provided, and The communication pipe is equipped with a control valve capable of adjusting the flow of the liquid filled in the liquid chamber. When the vehicle is traveling, such as when making a sharp turn, the valve of the communication pipe is closed to increase the spring constant in the direction opposite the liquid chamber. This enhances the vehicle's controllability, and during normal straight driving, the valves are opened to connect the fluid chambers to each other to reduce the spring constant and enhance the anti-vibration performance to improve the ride comfort of the vehicle. It has a remarkable effect that it can be tuned in and that the directional rigidity given to the mount can be selectively changed according to the running state of the automobile.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a control type vibration proof mount according to an embodiment of the present invention with the right half omitted.

FIG. 2 is a plan view of the same embodiment.

FIG. 3 is an exploded sectional view of the embodiment.

[Explanation of symbols]

 (1) Inner cylinder (2) Outer cylinder (3) Anti-vibration substrate (4) Liquid chamber (5) Communication pipe (6) Control valve (7) Void (8) Body plate (9) Gap (10) Base plate ( 11) Stopper rubber (12) Seal plate

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

Claims (1)

Claims for utility model registration: Claims: 1. An anti-vibration mount comprising an inner cylinder, an outer cylinder enclosing the inner cylinder, and an anti-vibration base provided between the inner and outer cylinders. The liquid chambers are provided symmetrically with the cylinder sandwiched between them, a communication pipe for communicating the symmetrical liquid chambers is provided, and a control valve capable of adjusting the flow of the liquid enclosed in the liquid chamber is provided in the communication pipe. A control type anti-vibration mount that is characterized.