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Liquid-filled anti-vibration mounting device

A support device and anti-vibration technology, which is applied to power plants, jet propulsion devices, internal combustion propulsion devices, etc., can solve the problems of liquid leakage, insufficient hydraulic pressure of the movable plate, and damage to the original function of the movable plate. area reduction effect

Inactive Publication Date: 2010-06-23
KURASHIKI KAKO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, as in the former prior art example (JP-A-2006-38016), even if recesses are formed on the movable plate, the impact caused by the collision with the partition wall cannot be sufficiently alleviated by it alone, and there is still room for improvement. Room for further noise reduction in the car interior
That is, this is because, in the above-mentioned conventional example, since recesses are formed only at positions relatively close to the inner periphery among both surfaces of the movable plate, no recesses are formed at positions near the outer periphery, and therefore hit the movable plate at the position near the outer periphery. When partitioning the wall, a considerable area hits the partitioning wall at the same time
[0010] And, when the centers of the plurality of communication holes are eccentric toward one side in the diameter direction as in the latter conventional example (JP-A-2006-207630), a region with fewer communication holes is formed on the opposite side, such as As described in paragraphs 0062 and 0063 of the same document, there may be insufficient hydraulic pressure to press the movable plate against the partition wall, resulting in leakage of liquid.
[0011] On this point, in paragraph 0064 of the same document and Figure 7 As shown above, the case where the auxiliary opening is provided on the side opposite to the side where the centers of the plurality of communication holes are eccentric is shown. For the original function of tilting the movable plate

Method used

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  • Liquid-filled anti-vibration mounting device
  • Liquid-filled anti-vibration mounting device
  • Liquid-filled anti-vibration mounting device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0056] figure 1 To show an embodiment in which the anti-vibration supporting device of the present invention is applied to an engine mount A for an automobile, the engine mount A is interposed between a power plant (not shown) and the vehicle body of the automobile, and supports the While absorbing or attenuating the vibration from the power device while loading the power device, the transmission of the vibration to the vehicle body side is suppressed.

[0057] figure 1 A means appearance, figure 1 B represents a longitudinal section, and the engine block A of this embodiment includes a connecting metal tool 1 (support member) connected to the vehicle body side by a bracket (brachet) not shown in the figure, and a circle surrounding the outer circumference of the connecting metal tool 1 . Cylindrical shell 2. The connecting metal tool 1 protrudes downward from the lower end of the housing 2 and is connected to the housing 2 by a rubber elastic member 3 so as to be displa...

no. 2 example

[0104] Figure 7 ~ Figure 9 The structure of the orifice disc 4 according to the second embodiment of the present invention is shown. Because in this second embodiment, only a part of the structure of the cover part 41 of the orifice disc 4 is different from the first embodiment, and other places are the same as the first embodiment, so below, the same parts are labeled with the same symbol, and Description is omitted.

[0105] Specifically, communication holes 41b, 41b, . Figure 9 As shown in the bottom view, a rubber layer 41c is formed on the entire lower surface of the cover member 41 by vulcanization bonding or the like (in the same figure, the range that becomes the ceiling surface r2 of the storage room R is indicated by hatching). In this rubber layer 41c, one hollow portion 41d, 41d, . That is, the depressed portions 41d, 41d, ... and the communication holes 41b, 41b, ... are alternately arranged at equal intervals in the circumferential direction.

[0106] and, ...

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PUM

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Abstract

The invention discloses a liquid-filled anti-vibration mounting device. The purpose is that: it aims at the configuration of the communication holes equipped on the division walls that a movable plate, particularly its portion towards the peripheral edge, has a small area to come into contact with the division walls at a time, which effectively disperses and lessens a shock due to contact. In a liquid-filled anti-vibration mounting device suitable such as for an engine mount (A), an accommodation room (R) containing a rubber movable plate (42) is formed inside a partition member (4) partitioning a liquid chamber (F) into a pressure receiving chamber (f1) and a balancing chamber (f2). The partition member (4) includes a pair of division walls, one adjoining the pressure receiving chamber (f1) and the other adjoining the balancing chamber (f2). Each division wall is formed with a plurality of communication holes (41b), (40e). The communication holes (41b), (40e) are arranged to undulateat least a portion of the movable plate (42) towards the peripheral edge thereof at specified circumferential intervals or greater by the action of the liquid pressure through the communication holes. The movable plate (42) thus deformed, particularly its portion towards the peripheral edge, has a small area to come into contact with the division walls at a time, which effectively disperses and lessens a shock due to contact; thereby reducing the peak value of the conveying force towards t5he vehicle side and reducing the noise in the vehicle chamber.

Description

technical field [0001] The present invention relates to, for example, a liquid-enclosed type anti-vibration support device used in automobiles, and particularly relates to a device in which a movable plate is accommodated inside a partition member of a liquid chamber for suppressing noise generated by collision of the movable plate Structure. Background technique [0002] Heretofore, an engine mount for automobiles has been known as such a vibration-proof support device. Its basic structure is to install a rubber elastic between the mounting part on the engine side and the supporting part on the vehicle body, and form a liquid chamber between the two parts, so that the volume changes with the deformation of the rubber elastic. At the same time, the The liquid chamber is separated into a pressure chamber and an equalization chamber, and an orifice channel is provided to connect those pressure chambers and the equalization chamber. [0003] The above-mentioned orifice channe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/00B60K5/12
Inventor 片山稔太田胜敏内田纯生山元祯治
Owner KURASHIKI KAKO CO LTD