CN1705833A - Liquid-sealed vibration isolator and elastic partition film used in same - Google Patents

Abstract

Provides a liquid-encapsulated anti-vibration device that can sufficiently reduce noise. The liquid-encapsulated antivibration device according to the first embodiment has: a first bead whose apex is located at a position separated from the grill member; The second rib formed by the narrow rib. When the elastic partition film collides with the grill member with the vibration, the second ribs form resistance, and the elastic partition film and the grill member collide gently, thereby reducing noise. On the other hand, the liquid-sealed anti-vibration device of the second embodiment has first and second displacement regulating protrusions arranged asymmetrically with respect to a virtual plane passing through the center of the elastic separation film in the thickness direction. When the elastic separation membrane is displaced, the displacement limiting protrusions on the opposite side of the displacement direction can locally reinforce the rigidity of the elastic separation membrane, thereby making it difficult for the elastic separation membrane to displace, thereby effectively reducing noise.

Description

The elasticity separation membrane that uses in liquid packaged type vibration control equipment and this liquid packaged type vibration control equipment

Technical field

The present invention relates to the elasticity separation membrane that uses in liquid packaged type vibration control equipment and this liquid packaged type vibration control equipment, this liquid packaged type vibration control equipment has the 1st assembly, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that makes said the 1st liquid chamber and the 2nd the two connection of liquid chamber, said spacer body is to have the elasticity separation membrane, and a pair of grid part that the displacement amount of said elasticity separation membrane is limited from its both sides and constituting.

Background technique

Said liquid packaged type vibration control equipment for example is arranged between the engine and vehicle frame of automobile.When producing large-amplitude vibration, liquid flows between two liquid chambers via throttle orifice, with this fluid flowing effect vibration is decayed when track is uneven.And when producing small amplitude vibration, fluid can not circulate between two liquid chambers, by the reciprocal distortion of elasticity separation membrane vibration is decayed.

This liquid packaged type vibration control equipment produces noise easily when elasticity separation membrane and grid part collision.For this reason, be to open the shown in Figure 4 of flat 6-221368 communique as the spy in the past, radial prominent muscle is set on grid part.In addition, the elasticity separation membrane be can be positioned at grid part be separated locational.

But,, the generation of the impact sound when existing the prominent muscle collision that can not avoid elasticity separation membrane and grid part, can't fully reduce the problem of noise though above-mentioned existing structure can reduce noise to a certain extent.

Summary of the invention

The present invention proposes for addressing the above problem, and its objective is provides the elasticity separation membrane that uses in a kind of liquid packaged type vibration control equipment that can fully reduce noise and this liquid packaged type vibration control equipment.

To achieve these goals, the liquid packaged type vibration control equipment of technological scheme 1 is a kind of the 1st assembly that has, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that said the 1st liquid chamber and the 2nd liquid chamber are communicated with, said spacer body is to have the elasticity separation membrane, and a pair of grid part that the displacement amount of said elasticity separation membrane is limited from its both sides and the liquid packaged type vibration control equipment that constitutes, on the two sides of said elasticity separation membrane, be provided with prominent muscle group respectively highlightedly, should prominent muscle group constitute to have a plurality of the 1st prominent muscle mixed in together and a plurality of the 2nd prominent muscle, the height dimension of the said the 1st prominent muscle is designed to its top and is positioned on the position that separates with said grid part, the height dimension of the said the 2nd prominent muscle is designed to make its top and said grid part butt, and the 2nd prominent muscle width is designed to be narrower than the said the 1st prominent muscle.

The liquid packaged type vibration control equipment of technological scheme 2 is in the liquid packaged type vibration control equipment of technological scheme 1, the said the 1st prominent muscle to be can being that the situation that unit fences up these grate openings is arranged on the surface of said elasticity separation membrane with both grate openings of determined number, the said the 2nd prominent muscle dispersed placement on the surface of said elasticity separation membrane.

The liquid packaged type vibration control equipment of technological scheme 3 is in the liquid packaged type vibration control equipment of technological scheme 2, said grate opening upwards is furnished with multiple row in the week of said grid part, the said a plurality of the 1st prominent muscle form in the form of a ring can be in the footpath of said grid part upwards respectively with the grid part part butt of the both sides of each grate opening row, the said a plurality of the 2nd prominent muscle is arranged radially with respect to the center line of said elasticity separation membrane.

The liquid packaged type vibration control equipment of technological scheme 4 is in the liquid packaged type vibration control equipment of technological scheme 1, and the said the 1st prominent muscle and the 2nd prominent muscle are can being that the situation that unit fences up these grate openings is arranged on the surface of said elasticity separation membrane with both grate openings of determined number.

The liquid packaged type vibration control equipment of technological scheme 5 is a kind of the 1st assembly that has, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that makes said the 1st liquid chamber and the 2nd the two connection of liquid chamber, said spacer body is to have the elasticity separation membrane, the tube portion that holds this elasticity separation membrane, and a pair of grid part that the displacement amount of the elasticity separation membrane in the said tube portion is limited from its both sides and the liquid packaged type vibration control equipment that constitutes, a grid part among the said a pair of grid part is located between the inner peripheral surface of said tube portion, fuse with this one, being formed with respectively on the two sides of said elasticity separation membrane to be a plurality of prominent muscle that unit fences up these grate openings with both grate openings of determined number.

The liquid packaged type vibration control equipment of technological scheme 6 is in the liquid packaged type vibration control equipment of technological scheme 5, dispersed placement has a plurality of auxiliary prominent muscle respectively on the two sides of said elasticity separation membrane, the height dimension of said prominent muscle is designed to its top and is positioned on the position that separates with said grid part, the height dimension of said auxiliary prominent muscle be designed to its top respectively with said grid part butt, and auxiliary prominent muscle width is designed to be narrower than said prominent muscle.

The liquid packaged type vibration control equipment of technological scheme 7 is in the liquid packaged type vibration control equipment of technological scheme 6, said grate opening upwards is furnished with multiple row in the week of said grid part, said a plurality of prominent muscle forms in the form of a ring, can be in the footpath of said grid part upwards respectively with the grid part part butt of the both sides of each grate opening row, said auxiliary prominent muscle is arranged radially with respect to the center line of said elasticity separation membrane.

The liquid packaged type vibration control equipment of technological scheme 8 is a kind of the 1st assembly that has, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that said the 1st liquid chamber and the 2nd liquid chamber are communicated with, said spacer body is to have the elasticity separation membrane, and a pair of grid part that the displacement amount of said elasticity separation membrane is limited from its both sides and the liquid packaged type vibration control equipment that constitutes, has the 1st displacement restriction projection that on a face of said elasticity separation membrane, is provided with highlightedly, and on another face of said elasticity separation membrane or with this another face said grid part in opposite directions on the 2nd displacement restriction projection that is provided with highlightedly, said the 1st displacement restriction projection arrangement is being on the asymmetrical position with respect to the imaginary plane and said the 2nd displacement restriction projection of passing from the central authorities of the thickness direction of said elasticity separation membrane.

The liquid packaged type vibration control equipment of technological scheme 9 is in the liquid packaged type vibration control equipment of technological scheme 8, and said the 2nd displacement restriction projection is to be provided with highlightedly from another face of said elasticity separation membrane.

The liquid packaged type vibration control equipment of technological scheme 10 is in the liquid packaged type vibration control equipment of technological scheme 8 or 9, at least a portion of said the 2nd displacement restriction projection is furnished with many radially with respect to the center line of said elasticity separation membrane, at least a portion of said the 1st displacement restriction projection is arranged with respect to the center line of said elasticity separation membrane radially said the layout radially and the about neutral position between a pair of the 2nd displacement restriction projection adjacent one another are is located.

The liquid packaged type vibration control equipment of technological scheme 11 is in the liquid packaged type vibration control equipment of technological scheme 9, said the 1st displacement restriction projection and the 2nd displacement restriction projection have the n bar uniformly-spaced to arrange radially and on circumferentially with respect to the center line of said elasticity separation membrane respectively, said the 1st displacement restriction projection is arranged in the angle of rotation of about π/n that upwards staggers in week with respect to said the 2nd displacement restriction projection, and said the 1st displacement restriction projection forms to have approximately identical rising height and spout width with the 2nd displacement restriction projection.

In technological scheme 11, so-called each displacement restriction projection " with respect to center line " is provided with radially, is meant that " outside the alignment of center " is provided with radially, and " n " of said n bar is meant the integer more than 1.In addition, above-mentioned " π " is meant Ratio of the circumference of a circle to its diameter (being about 3.14), and the unit of " angle of rotation of π/n " is " rad ".

For example, elasticity separation membrane 115 (with reference to Figure 16) in the 2nd mode of execution described later, be the 1st and the 2nd displacement restriction projection 151a, 151b each have 4 (n=4) week upwards approximately uniformly-spaced (90 degree at interval) arrange the example that the 1st displacement restriction projection 151a arranges in 45 degree that upwards stagger in week (=π/n[rad]) angle of rotation with respect to the 2nd displacement restriction projection 151b.

The liquid packaged type vibration control equipment of technological scheme 12 is in the liquid packaged type vibration control equipment of arbitrary technological scheme of technological scheme 8 to 11, and said the 1st displacement restriction projection and said the 2nd displacement restriction projection can constitute with the height of said grid part or said elasticity separation membrane butt with its top.

The liquid packaged type vibration control equipment of technological scheme 13 is in the liquid packaged type vibration control equipment of arbitrary technological scheme of technological scheme 8 to 12, have supplementary projection, this supplementary projection constitutes to have than the low rising height of said the 1st displacement restriction projection and to have than the said narrow spout width of the 1st displacement restriction projection.

The elasticity separation membrane of technological scheme 14 is the elasticity separation membranes that use in the liquid packaged type vibration control equipment of arbitrary technological scheme of technological scheme 1 to 13.

Description of drawings

Fig. 1 is the longitudinal sectional view of the liquid packaged type vibration control equipment in the present invention's the 1st mode of execution.

Fig. 2 is the plan view of barrier part.

Fig. 3 is the vertical profile plan view of barrier part.

Fig. 4 is the side view of barrier part.

Fig. 5 is the plan view of separation membrane displacement restriction parts.

Fig. 6 is the plan view of separation membrane displacement restriction parts.

Fig. 7 is the plan view of elasticity separation membrane.

Fig. 8 is the A-A sectional drawing of Fig. 7.

Fig. 9 is the B-B sectional drawing of Fig. 7.

Figure 10 is the plan view of spacer body.

Figure 11 is the C-O-C sectional view of Figure 10.

Figure 12 is the longitudinal sectional view of the liquid packaged type vibration control equipment in the present invention's the 2nd mode of execution.

Figure 13 (a) is the plan view of barrier part, and Figure 13 (b) is the side view of barrier part.

Figure 14 is the D-D sectional view of Figure 13.

Figure 15 (a) is the plan view of separation membrane displacement restriction parts, and Figure 15 (b) is the E-E sectional drawing of Figure 15 (a).

Figure 16 (a) is the plan view of elasticity separation membrane, and Figure 16 (b) is the side view of elasticity separation membrane, and Figure 16 (c) is the worm's eye view of elasticity separation membrane.

Figure 17 is the F-F sectional view of Figure 16 (a).

Figure 18 is the accompanying drawing that the upper surface of comparative example 1～3 and lower surface are showed.

Figure 19 is the accompanying drawing that embodiment 1～3 upper surface and lower surface are showed.

Figure 20 is an accompanying drawing of showing noise evaluation test result.

Figure 21 (a) is the plan view of comparative example 1, and Figure 21 (b) is embodiment 1 a plan view.

Figure 22 (a) is that G-G section with Figure 21 (a) is launched into the schematic representation that the plane is showed to Figure 22 (c), reflects the distortion situation of elasticity separation membrane.

Figure 23 (a) is that H-H section with Figure 21 (b) is launched into the schematic representation that the plane is showed to Figure 23 (c), reflects the distortion situation of elasticity separation membrane.

The numbering explanation

100,200 liquid packaged type vibration control equipments

1,101 the 1st metal assembly (the 1st assembly)

2,102 the 2nd metal assemblys (the 2nd assembly)

3,103 main vibration absorbers

8 liquid encapsulation chamber

9 diaphragms

11A the 1st liquid chamber

11B the 2nd liquid chamber

12,112 spacer bodies

16,116 barrier parts (tube portion)

25,125 throttle orifices

15,115 elasticity separation membranes

17,117 separation membrane displacement restriction parts (grid part)

18,118 grid walls (grid part)

50 prominent muscle groups

51 the 1st prominent muscle (prominent muscle)

52 the 2nd prominent muscle (auxiliary prominent muscle)

151a the 1st displacement restriction projection

151b the 2nd displacement restriction projection

152a the 1st supplementary projection (supplementary projection)

152b the 2nd supplementary projection (supplementary projection)

54,154 grate openings

54A～54C, 154A～154C grate opening

P, the center line of T elasticity separation membrane

Embodiment

Below, to preferred implementation of the present invention in conjunction with the accompanying drawings.Fig. 1 illustrates the liquid packaged type vibration control equipment 100 in the 1st mode of execution.

This liquid packaged type vibration control equipment 100 has the 1st metal assembly 1 on the engine that is installed to automobile, is installed to the 2nd metal assembly 2 of the tubular on the vehicle frame of engine below and the main vibration absorber 3 that is made of rubber-like elastic body that they are coupled together as shown in Figure 1.

As shown in Figure 1, the 1st metal assembly 1 is tabular formation, and the position is provided with the construction bolt 6 that projects upwards in the central.The 2nd metal assembly 2 has by adding sulphur and is formed with the metal cylindrical part 4 of main vibration absorber 3 and cup-shaped metal bottom parts 5, is provided with outstanding construction bolt 6 downwards at the central position of metal bottom parts 5.

Main vibration absorber 3 is truncated cone shape and forms.And as shown in Figure 1, its upper-end surface and underpart become on the big upper end-hole by the top that adds sulphur content and be not bonded in the 1st metal assembly 1 and metal cylindrical part 4.Be formed with the less hollow portion in top at the lower surface place of this main vibration absorber 3, the rubber membrane 7 that covers the inner peripheral surface of metal cylindrical part 4 is connected the underpart of main vibration absorber 3.

As shown in Figure 1, be equipped with on the 2nd metal assembly 2 by rubber membrane and be the local diaphragm 9 that forms for spherical shape, between the lower surface of this diaphragm 9 and main vibration absorber 3, formed liquid and encapsulated chamber 8.The liquid encapsulation is packaged with liquid in the chamber 8.Diaphragm 9 is covered by metal bottom parts 5.

As shown in Figure 1, liquid encapsulation chamber 8 is separated body 12 (with reference to Figure 10 and Figure 11) and is divided into the 1st liquid chamber 11A of main vibration absorber 3 one sides and the 2nd liquid chamber 11B of diaphragm 9 one sides.Holding element 14 and main vibration absorber 3 that spacer body 12 was set on interior week of the 2nd metal assembly 2 grip.

Spacer body 12 to be having by the rubber membrane elasticity separation membrane 15 that constitutes in the form of annular discs, to hold this elasticity separation membrane 15 and be the discoid separation membrane displacement restriction parts 17 that form of being with grid with the grid wall 18 of inner peripheral surface one side to its barrier part that stops 16 and with what the port of the end (upper end of Fig. 1) of this barrier part 16 covered, and constitutes.That is, the displacement amount by grid wall 18 and 17 pairs of elasticity separation membranes 15 of separation membrane displacement restriction parts limits from the both sides of this film 15.

Between the inner peripheral surface of the outer circumferential face of barrier part 16 and the 2nd metal assembly 2, be formed with throttle orifice 25.At this, throttle orifice 25 is described in conjunction with Fig. 2 to Fig. 4.Throttle orifice 25 is throttling circulation paths (with reference to Fig. 1) that the 1st liquid chamber 11A and the 2nd liquid chamber 11B are communicated with each other, and to shown in Figure 4, the center line O that centers on barrier part 16 was wound with for two weeks as Fig. 2.

That is to say, with throttling circulation path R1 with top week and the throttling circulation path R2 in a following week and constitute.Throttling circulation path R1, R2 are separated by throttle orifice formation wall 22 up and down.In addition, top throttling circulation path R1 is communicated with the 1st liquid chamber 11A by the opening 19 (with reference to Fig. 5) and the breach 55 of separation membrane displacement restriction parts 17.Following throttling circulation path R2 is communicated with the 2nd liquid chamber 11B by the opening 58 (with reference to Fig. 1) of holding element 14.

Getting back to Fig. 1 describes.Holding element 14 as shown in Figure 1, with have periphery plat part 28, be embedded in the 1st portion 29 on the underpart of rubber membrane 7, to the other end of barrier part 16 produce the pushing effect middle plat part 30 and, be embedded in the 2nd interior portion 31 of the other end (lower end of Fig. 1) port of barrier part 16 and constitute.To through caulking periphery plat part 28 be fixed with the mounting plate 10 and the metal bottom parts 5 of diaphragm 9 after the underpart bending of metal cylindrical part 4.

Below, in conjunction with Fig. 5 and Fig. 6 separation membrane displacement restriction parts 17 are described.As shown in Figure 5 and Figure 6, separation membrane displacement restriction parts 17 have cylindrical part 20 in its periphery, and this cylindrical part 20 is outer to be embedded on the end of barrier part 16 (with reference to Fig. 1).And the upper end of separation membrane displacement restriction parts 17 is subjected to the stopping of shoulder 57 (with reference to Fig. 1) of main vibration absorber 3 on the centerline direction of barrier part 16.

The grate opening 54 of separation membrane displacement restriction parts 17 as shown in Figure 5 and Figure 6, with have the grate opening 54C that is positioned at the center portion and, constitute at the grate opening 54A, the 54B that upwards are arranged in two row the week of separation membrane displacement restriction parts 17.

The quantity of the grate opening 54A of inner row is 4, and the quantity of the grate opening 54B of outer row is 8.As shown in Figure 5, arrange with equal equal angles (90 degree or 45 degree) separately.In addition, the grate opening 54A of inner row aligns in the position that makes progress in week with the per 45 grate opening 54B that spend of outer row.

The shape of grate opening row as shown in Figure 5, be with along circumferential hoop around annular distance disjunction radially and the shape that forms.19 of openings are to make the 1st liquid chamber 11A and throttle orifice 25 the two opening that are communicated with as mentioned above.

The grate opening 54 of grid wall 18 too, to have the grate opening 54C that is positioned at the center portion and to constitute (with reference to Fig. 2 to Fig. 4) at the grate opening 54A, the 54B that upwards are arranged in two row the week of grid wall 18.Its pattern (number, shape, the position around the center line O of grid wall 18 etc.) is identical with pattern on the separation membrane displacement restriction parts 17.

But when being embedded on the barrier part 16 outside the cylindrical part 20 with separation membrane displacement restriction parts 17, grate opening 54A, the 54B of grate opening 54A, the 54B of grid wall 18 and separation membrane displacement restriction parts 17 is (with reference to the Figure 10) that staggers in the position that makes progress in week.And the position of two grate opening 54C that are positioned at the center portion is identical.

Below, in conjunction with Fig. 7 to Fig. 9 elasticity separation membrane 15 is described.To shown in Figure 9, be provided with prominent muscle group 50 as Fig. 7 respectively highlightedly on the two sides of elasticity separation membrane 15.The pattern of prominent muscle group 50 on the pattern of prominent muscle group 50 on one of them face and another face is identical.

Should prominent muscle group 50 constitute to have a plurality of the 1st prominent muscle 51 and a plurality of the 2nd prominent muscle 52 respectively.

The a plurality of the 1st prominent muscle 51 forms in the form of a ring with respect to the center line P of elasticity separation membrane 15 as shown in Figure 7, and its height dimension is designed to its top and is positioned on the position that dative grid wall 18 (or separation membrane displacement restriction parts 17) is separated (with reference to Figure 11).That is to say, under the inoperative normality of fluid pressure, can between the top of the 1st prominent muscle 51 and grid wall 18 (or separation membrane displacement restriction parts 17), form both gaps of sizing.

And technological scheme 1 and technological scheme 6 said " top of the 1st prominent muscle is positioned on the position that dative grid parts are separated " are meant that the height dimension of the 1st prominent muscle is designed to produce said gap under above-mentioned normality.Therefore, be not to work and the elasticity separation membrane also requires " top of the 1st prominent muscle is positioned on the position that dative grid parts are separated " when being subjected to displacement at fluid pressure.

The a plurality of the 1st prominent muscle 51 is to constitute like this, promptly, work and elasticity separation membrane 15 when being subjected to displacement at fluid pressure, can be in the footpath of grid wall 18 (or separation membrane displacement restriction parts 17) upwards respectively with grid part part 53 (with reference to Fig. 2 and Fig. 5) butt of the both sides of each grate opening row.Like this, a plurality of the 1st prominent muscle 51 will be that unit fences up grate opening 54 with said each row (inner row and outer row).

In addition, technological scheme 2 and technological scheme 5 said " the 1st prominent muscle is arranged with the situation that grate opening can be fenced up " are meant that the 1st prominent muscle 51 fences up grate opening 54 when the 1st prominent muscle 51 is with grid part part 53 butts as mentioned above.Therefore, be not under the inoperative normality of fluid pressure, to require " grate opening is fenced up by the 1st prominent muscle " yet.

The 2nd prominent muscle 52 dispersed placement on whole of elasticity separation membrane 15.Specifically, as shown in Figure 7, arrange radially with respect to the center line P of elasticity separation membrane 15.

In addition, the 2nd prominent muscle 52, its height dimension is designed to its top and grid wall 18 (or separation membrane displacement restriction parts 17) butt, and it is narrower than the 1st prominent muscle 51 that its prominent muscle width is designed to be.

That is, shown in the enlarged view of Fig. 9, under assembled state, in the top and separation membrane displacement restriction parts 17 butts of the 2nd prominent muscle 52 on a face of elasticity separation membrane 15, the top and grid wall 18 butts of the prominent muscle 52 of the 2nd on another face.

In addition, as mentioned above, a plurality of the 1st prominent muscle 51 is mixed in together with a plurality of the 2nd prominent muscle 52.

Abovely describe the present invention, but the present invention is not subjected to any qualification of above-mentioned the 1st mode of execution, is easy to expect, can carry out various modifications and variations in the scope that does not exceed main idea of the present invention in conjunction with the 1st mode of execution.

[1] in above-mentioned the 1st mode of execution, a plurality of the 1st prominent muscle 51 to be can being that unit fences up them and constitutes with a plurality of grate openings 54, but also can be can being that unit fences up them and constitutes with a grate opening 54.

That is, said prominent muscle group 50 can also constitute like this, that is, have can with a grate opening 54 a plurality of the 1st prominent muscle 51 that be unit fence up them and on the surface of elasticity separation membrane 15 a plurality of the 2nd muscle 52 of dashing forward of dispersed placement.In this case, also can be said in below [4], the pattern that makes the 2nd prominent muscle 52 is the pattern outside radial.

[2] in above-mentioned the 1st mode of execution, the 1st prominent muscle 51 of the just elasticity separation membrane 15 that both grate openings 54 of determined number is fenced up, but for example also can be designed to the structure that can the grate opening 54 of said both determined number (one or more) be fenced up with the prominent muscle of the quadrilateral frame shape that forms by the 1st prominent muscle 51 and the 2nd prominent muscle 52 and alternative it.In this case, two horizontal limits that also can be designed to quadrilateral frame are the 1st prominent muscle 51, and two limits are the 2nd prominent muscle 52 longitudinally.

[3] even if the said the 1st prominent muscle 51 and the 2nd prominent muscle 52 do not fence up grate opening 54, the present invention also can be applied.

[4] pattern of the pattern of said grate opening 54, the 1st prominent muscle 51 and the 2nd prominent muscle 52 is not limited to the pattern of above-mentioned the 1st mode of execution, and is unquestionable, also other pattern can be applied among the present invention.

Below, in conjunction with Figure 12 to Figure 23 the 2nd mode of execution is described.In the 1st mode of execution, prominent muscle group 50 is a symmetric arrangement on two faces of elasticity separation membrane 15, with respect to this, in the 2nd mode of execution, the 1st and the 2nd displacement restriction projection 151a, 151b are asymmetric arrangement with respect to the imaginary plane F that passes from the central authorities of the thickness direction of elasticity separation membrane 115.For with the identical part of aforementioned the 1st embodiment, give identical numbering and its explanation omitted.

Figure 12 is the longitudinal sectional view of the liquid packaged type vibration control equipment 200 in the present invention's the 2nd mode of execution.The main vibration absorber 103 that constitutes by rubber-like elastic body that same with the 1st mode of execution, liquid packaged type vibration control equipment 200 has the 1st metal assembly 101 on the engine that is installed to automobile, be installed to the 2nd metal assembly 102 of the tubular on the vehicle frame of engine below and connect the 1st and the 2nd metal assembly 101,102.

The 101 cylindrical formation of the 1st metal assembly, and as shown in figure 12, its upper-end surface is provided with recessed female thread 101a.The 2nd metal assembly 102 and the 1st mode of execution are same, have by adding sulphur to be formed with the metal cylindrical part 104 of main vibration absorber 103 and cup-shaped metal bottom parts 105.The bottom of metal bottom parts 5 tilts.

Main vibration absorber 103 and the 1st mode of execution equally also are truncated cone shape and form, and are bonded between the 1st metal assembly 101 and the metal cylindrical part 104 by adding sulphur.In addition, the rubber membrane 107 of the inner peripheral surface of covering metal cylindrical part 104 is connected the underpart of main vibration absorber 103.

Same with the 1st mode of execution, on the 2nd metal assembly 102 diaphragm 9 is installed, between the lower surface of this diaphragm 9 and main vibration absorber 103, formed liquid encapsulation chamber 8.And liquid encapsulation chamber 8 is separated body 112 and is divided into the 1st liquid chamber 11A of main vibration absorber 103 1 sides and the 2nd liquid chamber 11B of diaphragm 9 one sides.

The mounting plate 10 of diaphragm 9 is fixed on the 2nd metal assembly 102 by caulking, and spacer body 112 is clamped and fixed between the shoulder 57 of diaphragm 9 and main vibration absorber 103.

Spacer body 112 with have by the rubber membrane elasticity separation membrane 115 that constitutes in the form of annular discs, hold this elasticity separation membrane 115 and with the grid wall 118 of inner peripheral surface one side to its barrier part that stops 116 and be embedded in being the discoid separation membrane displacement restriction parts 117 that form of being with grid and constituting in bottom (below of Fig. 1) port of this barrier part 116.

As mentioned above, the two arranges grid wall 118 and separation membrane displacement restriction parts 117 in opposite directions across set interval, and is therefore same with the 1st mode of execution, and the displacement amount of elasticity separation membrane 15 is limited from both sides up and down.

Between the outer circumferential face of barrier part 116 and rubber membrane 107 that the inner peripheral surface of the 2nd metal assembly 2 is covered, being formed with rounds around the center line O of barrier part 116 forms, makes the 1st liquid chamber 11A and the two throttle orifice that is communicated with 125 of the 2nd liquid chamber 11B.

In the 2nd mode of execution, the peripheral part of elasticity separation membrane 115 is clamped between grid wall 118 and the separation membrane displacement restriction parts 117 with no gap state, make between the 1st liquid chamber 11A and the 2nd liquid chamber 11B, via being blocked fully being communicated with of grate opening 154 described later.Therefore, the liquid in the liquid encapsulation chamber 8 can only circulate between the 1st liquid chamber 11A and the 2nd liquid chamber 11B via throttle orifice 125.

Below, in conjunction with Figure 13 and Figure 14 the barrier part 116 that constitutes spacer body 112 is described.

As Figure 13 and shown in Figure 14, barrier part 116 is the cylindric formation with center line Q.On the axial upper and lower end of barrier part 116, be provided with the outstanding throttle orifice that is about flange shape and form wall 122, between the forward surface of these throttle orifices formation walls 122, formed throttling circulation path R1.

Be formed with breach 155,158 respectively on the throttle orifice formation wall 122 up and down, throttling circulation path R1 also is communicated with the 2nd liquid chamber 11B by breach 158 except by breach 155 and the 1st liquid chamber 11A is communicated with.

As Figure 13 and shown in Figure 14, on the interior week of barrier part 116, be formed with grid wall 118, offer grate opening 154 on this grid wall 118.Grate opening 154 has at the grate opening 154A～154C that upwards is arranged in 3 row the week of grid wall 118.

As shown in figure 13, the quantity of each grate opening 154A～154C is, inner row (grate opening 154A) are 6, middle row (grate opening 154B) are 8, outer row (grate opening 154C) are 4, uniformly-spaced (are followed successively by 60,45 degree and 90 degree from inner row) respectively on circumferentially and arrange.

The shape of each grate opening row as shown in figure 13, inner row are shapes that the grate opening 154A of circular arc forms along circumferential array, middle and outer two be listed as be with along circumferential hoop around annular distance disjunction radially and the shape that forms.Grate opening 154B approximately equates with the diameter of its width and grate opening 154A and is wideer and constitute than the width of grate opening 154C.

Below, in conjunction with Figure 15 the separation membrane displacement restriction parts 117 that constitute spacer body 112 are described.

As Figure 15 (a) with (b), separation membrane displacement restriction parts 117 are the discoid formation with center line S.Spacer body 112 is embedded into going up in interior week of barrier part 116 with these separation membrane displacement restriction parts 117 and is assembled into (with reference to Figure 12).At this moment, the location of separation membrane displacement restriction parts 117 is last realizations of last formed shoulder (with reference to Figure 14) of interior week that are fastened on barrier part 116 by the upper end portion of separation membrane displacement restriction parts 117.

As shown in figure 15, separation membrane displacement restriction parts 117 constitute to have at the grate opening 154A～154C that upwards is arranged in 3 row week.The pattern of these grate openings 154A～154C (number, shape, the position around center line S etc.) is identical with pattern on the grid wall 118, so it is illustrated omission.

Under the state after spacer body 112 assemblings (with reference to Figure 12), separation membrane displacement restriction parts 117 there is no particular restriction with respect to grid wall 118 in the position relation that makes progress in week.That is, each grate opening 154A～154C of separation membrane displacement restriction parts 117 1 sides is in the position that makes progress in week, both can upwards stagger in week with respect to each grate opening 154A～154C of grid wall 118 1 sides, also can be in upwards alignment of week.

Below, in conjunction with Figure 16 and Figure 17 elasticity separation membrane 115 is described.

As Figure 16 and shown in Figure 17, elasticity separation membrane 115 has: be arranged on the 1st displacement restriction projection 151a and the 1st supplementary projection 152a on the one face highlightedly; Be arranged on the 2nd displacement restriction projection 151b and the 2nd supplementary projection 152b on another face highlightedly.

The the 1st and the 2nd displacement restriction projection 151a, 151b are the prominent muscle shape projections that constitutes to have mutually the same rising height and spout width, and as shown in figure 16, the center line T from elasticity separation membrane 115 outwards respectively extends 4 radially respectively.

These the 1st and the 2nd displacement restriction projections 151a, 151b are as shown in figure 16, uniformly-spaced (90 degree at interval) arranges on circumferentially, and the 1st displacement restriction projection 151a on face arranges in the set angle of rotation that upwards staggers in week with respect to the 2nd displacement restriction projection 151b on another face.Therefore, the 1st displacement restriction projection 151a with respect to imaginary plane F be arranged in the 2nd displacement restriction projection 151b asymmetrical locational.

Said imaginary plane F is meant from the central authorities of the thickness direction of elasticity separation membrane 115 (being the film that standing shape is provided with each displacement restriction projection and supplementary projection 151a, 151b, 152a, 152b) and passes and perpendicular to the imaginary plane of the center line T of elasticity separation membrane 115 as shown in figure 17.

For example, in the present embodiment, constitute with identical rising height with the 2nd displacement restriction projection 151a, 151b owing to the 1st, therefore, on the section that includes center line T (Figure 17), imaginary plane F is that the plane that couples together with top with the 1st displacement restriction projection 151a and these two faces of plane that the top of the 2nd displacement restriction projection 151b is coupled together are parallel.

Here, the 1st displacement restriction projection 151a on face is 45 degree with respect to the 2nd displacement restriction projection 151b on another face in the angle of rotation that upwards staggers in week.Therefore, the 1st displacement restriction projection 151a (or the 2nd displacement restriction projection 151b) is on the neutral position that is arranged between a pair of the 2nd displacement restriction projection 151b (or the 1st displacement restriction projection 151a) at Figure 16 (a) or on the plan view of the elasticity separation membrane 115 (c).

In addition, as shown in figure 17, the 1st and the 2nd displacement restriction projection 151a, 151b approximately equate with the height of the peripheral part of elasticity separation membrane 115 with its rising height and constitute.Therefore, under the 1st and the 2nd displacement restriction projection 151a, the 151b state after spacer body 112 is assembled (with reference to Figure 12), their top and separation membrane displacement restriction parts 117 or grid wall 118 butts.

And the 1st and the 2nd supplementary projection 152a, 152b are the prominent muscle shape projections that constitutes to have mutually the same rising height and spout width, and as shown in figure 16, the prominent muscle that is positioned at radial position and ring-type position by the center line T with respect to elasticity separation membrane 115 combines.

In addition, as shown in figure 16, the spout width of the 1st and the 2nd supplementary projection 152a, 152b designs narrowlyer than the 1st and the 2nd displacement restriction projection 151a, 151b, and as shown in figure 17, its rising height designs lowlyer than the 1st and the 2nd displacement restriction projection 151a, 151b.

Below, in conjunction with Figure 18 to Figure 20 noise evaluation test result is described.

The noise evaluation test, the test that the noise that is produced when being the bigger vibration of amplitudes such as vibration to when starting input is measured is used the liquid packaged type vibration control equipment 200 in the 2nd mode of execution and is adopted variform various elasticity separation membrane 115 to carry out the mensuration of noise.

Specifically, amount to the mensuration that 6 kinds of elasticity separation membranes carry out noise at 3 kinds of elasticity separation membranes shown in Figure 180 (below be called " comparative example 1～3 ") and 3 kinds of elasticity separation membranes shown in Figure 19 (below be called " embodiment 1～3 ").

For the ease of understanding, in Figure 18 and Figure 19, drawn hacures on the 1st and the 2nd displacement restriction projection, and the 1st and the 2nd supplementary projection has been omitted.

Here, comparative example 1～3 only is that with embodiment 1～3 difference the shape of the 1st and the 2nd displacement restriction projection is different, and shape in addition and characteristic (thickness size of elasticity separation membrane and rubber hardness etc.) are then identical.

As Figure 18 and shown in Figure 19, in comparative example 1～3, the displacement restriction projection on face with respect to the imaginary plane F that passes from the central authorities of the thickness direction of elasticity separation membrane be with another face on displacement restriction projection symmetric arrangement; And be asymmetric arrangement in embodiment 1～3.In addition, illustrated elasticity separation membrane 115 is corresponding in embodiment 2 and the 2nd mode of execution.

Figure 20 is the accompanying drawing that the result to comparative example 1～3 and embodiment's 1～3 noise evaluation test shows, the longitudinal axis be with from the set vibration of engine side (the 1st metal assembly 101 sides) input (when frequency 15Hz, amplitude ± 1mm) from the accekeration of frame sides (the 2nd metal assembly 102 sides) output as the noise index expression.And transverse axis when representing idling (frequency 30Hz, the spring value of moving of amplitude ± 0.05mm).

At this moment, for liquid packaged type vibration control equipment 200, in the time of taking into account the little amplitude of input idling etc. (in general frequency be 20Hz～40Hz, amplitude for ± 0.05mm～± during large amplitudes such as vibration when 0.1mm) low moved spring and input starting (in general frequency be 10Hz～20Hz, amplitude for ± 1mm～± 2mm) this two specific character of low noise.Therefore, as the noise evaluation test, in Figure 20, the also lower zone, left bottom of the spring value of moving when trending towards the good and idling of noise index is for well.

When the checkout value among Figure 20 is compared as can be known, as embodiment 1～3, same with comparative example 1～3, the increase (with reference to Figure 18 and Figure 19) of the area that the elasticity separation membrane is retrained along with the 1st and the 2nd displacement restriction projection, the rigidity of elasticity separation membrane increases, thereby the noise index is tending towards well, but since the elasticity separation membrane become and be not easy to move, so the trend of the spring value variation of moving when showing idling.

But, can confirm that from Figure 20 embodiment 1～3 compares with comparative example 1～3, under the identical situation of the spring value of moving when idling, the noise index can obtain bigger raising, and under the identical situation of noise desired value, the spring of moving during idling is worth with further reduction.Its reason is owing to the result of the displacement restriction projection on the face with respect to the displacement restriction projection asymmetric arrangement on another face as described later.

For example, as embodiment 2, compare with comparative example 1, the the 1st and the 2nd displacement restriction projection 151a, 151b upwards are being staggeredly arranged (promptly each other in week, be arranged on the asymmetrical position with respect to the imaginary plane F that passes from the central authorities of the thickness direction of elasticity separation membrane 115), and can confirm that by the contrast of the two the noise index can reduce about 60% in the spring value of moving of embodiment 2 when keeping with the equal idling of comparative example 1.

Secondly, in conjunction with Figure 21 to Figure 23, the situation that above-mentioned comparative example 1 and embodiment's 2 elasticity separation membrane is subjected to displacement when just importing large amplitude compares the two.In Figure 21 to Figure 23, supplementary projection 152a, 152b have been omitted.

The elasticity separation membrane of comparative example 1 is shown in Figure 22 (a), and the 1st and the 2nd displacement restriction projection 151a, 151b on a face and another face are symmetric arrangement.When input along with large amplitude, when the variation of fluid pressure is delivered on the elasticity separation membrane by grate opening 154 (not shown), the elasticity separation membrane will be shown in Figure 22 (b) or Figure 22 (c), to fluid pressure direction (direction of arrow X or arrow Y), promptly be subjected to displacement from the less side of the bigger side direction of fluid pressure.

In this case, the elasticity separation membrane of comparative example 1, its limited position of non-displacement (not being subjected to the position of the constraint of the 1st and the 2nd displacement restriction projection 151a, 151b to the displacement of fluid pressure direction) is subjected to displacement, especially the displacement amount maximum in about neutral position of rigidity minimum.Its result will be shown in Figure 22 (b) or Figure 22 (c), and about neutral position at the limited position of non-displacement and separation membrane displacement restriction parts 17 or grid wall 18 bump and produce noise.

With respect to this, embodiment 2 elasticity separation membrane is shown in Figure 23 (a), and the 1st displacement restriction projection 151a on the one face is arranged on the asymmetric position with respect to the 2nd displacement restriction projection 151b on another face.More particularly, the 1st displacement restriction projection 151a (or the 2nd displacement restriction projection 151b) be arranged on neutral position between the 2nd displacement restriction projection 151b (or the 1st displacement restriction projection 151a) highlightedly, be on the opposing face at the maximum and the easiest position that contacts with grid part of the displacement amount of elasticity separation membrane.

Therefore, elasticity separation membrane for embodiment 2, even along with this elasticity separation membrane of input of large amplitude is subjected to displacement to fluid pressure direction (arrow X or arrow Y direction), also can be shown in Figure 23 (b) or Figure 23 (c), the intermediate portion at the limited position of non-displacement, the rigidity that promptly has the position of maximum effect for the generation of noise, because of the 1st and the 2nd displacement restriction projection 151a, the existence of 151b and obtain the emphasis reinforcement, therefore, when suppressing the increase of elasticity separation membrane integral rigidity, can also make the intermediate portion at the limited position of non-displacement be difficult for being subjected to displacement, thereby effectively reduce the large amplitude noise in when input.

Its result, elasticity separation membrane according to embodiment 2, only to being that the rigidity at necessary position is carried out low the move spring characteristic of emphasis reinforcement when keeping the little amplitude of input to reducing noise, also make noise when the elasticity separation membrane is difficult to contact with grid part with effective reduction input large amplitude, therefore, two kinds of opposite requirements are highly taken into account.

Abovely describe the present invention, but the present invention is not subjected to any qualification of above-mentioned the 2nd mode of execution, is easy to expect, can carry out various modifications and variations in the scope that does not exceed main idea of the present invention in conjunction with the 2nd mode of execution.

For example, in above-mentioned the 2nd mode of execution, be illustrated such as the example that forms from the outside linearly radiation of center line T with regard to 4 article of the 1st displacement restriction projection 151a, but be not limited to 4, its number can certainly be designed to below 3 or more than 5.The bar number of the 2nd displacement restriction projection 151b too.

In addition, in above-mentioned the 2nd mode of execution, be illustrated with respect to the example that the center line T of elasticity separation membrane 115 arranges radially with regard to the 1st and the 2nd displacement restriction projection 151a, 151b, but be not limited to this pattern, can certainly adopt other pattern.

As other pattern, for example can list the pattern arranged in the form of a ring with respect to center line T and radially with the comprehensive examples of arranging such as pattern of ring-type.In addition, the said radial straight line that is not limited to for example also can be a whirlpool shape curve etc.Said ring-type is not limited to just round, can also comprise shapes such as oval and polygonal.

In addition, in above-mentioned the 2nd mode of execution, with regard to the 1st and the 2nd displacement restriction projection 151a, the example that 151b all is arranged on the elasticity separation membrane 115 highlightedly is illustrated, but these two kinds of displacement restriction projection 151a, 151b must be arranged on the elasticity separation membrane 115, as long as at least one side's displacement restriction projection 151a, 151b is arranged on the face of elasticity separation membrane 115, and two displacement restriction projection 151a, 151b is asymmetric arrangement each other, the opposing party's displacement restriction projection 151b, 151a can certainly be arranged on separation membrane displacement restriction parts 117 or the grid wall 118 highlightedly.

In addition, in above-mentioned the 2nd mode of execution, the example that the 1st and the 2nd supplementary projection 152a, 152b just are set on elasticity separation membrane 115 is illustrated, but is not that they must be set, and a side or the both sides of these the 1st and the 2nd supplementary projection 152a, 152b can certainly be omitted.

Under the situation of having omitted the 1st and the 2nd supplementary projection 152a, 152b, also can implement wrinkling processing on the surface at the limited position of non-displacement of elasticity separation membrane 115 (not being provided with the position of the 1st and the 2nd displacement restriction projection 151a, 151b).Can certainly implement wrinkling processing on the surface of the 1st and the 2nd supplementary projection 152a, 152b.So, elasticity separation membrane 115 is collided in the hope of reducing noise light and slowly with separation membrane displacement restriction parts 117 or grid wall 118.

In addition, in above-mentioned the 2nd mode of execution, with the rising height of the 1st and the 2nd displacement restriction projection 151a, 151b be designed to its top under the state after spacer body 112 assemblings with separation membrane displacement restriction parts 117 and grid wall 118 butts, but be not to do like this, rising height can be designed between its top and separation membrane displacement restriction parts 117 or grid wall 118, form the gap yet.This gap is under the state after spacer body 112 assemblings, preferably approximately below the 0.3mm.

In addition, in above-mentioned the 2nd mode of execution, use the example of elasticity separation membrane 115 to be illustrated in the so-called single-unit discharge orifice type liquid packaged type vibration control equipment 200 that just the two is communicated with by a throttle orifice 125 at the 1st liquid chamber 11A and the 2nd liquid chamber 11B, but be not to do like this, can apply the present invention to certainly in the so-called binodal discharge orifice type liquid packaged type vibration control equipment yet.

Said binodal discharge orifice type liquid packaged type vibration control equipment is meant to have main liquid chamber, the 1st and the 2 two secondary liquid chamber and make the 1st and the 2 two throttle orifice that the 1st and the 2nd secondary liquid chamber is communicated with main liquid chamber respectively and the device that constitutes.

The possibility of utilizing on the industry

According to the liquid packaged type vibration control equipment of technological scheme 1, the top and the grid part that can be in a plurality of the 1st prominent muscle are separated, and the top of a plurality of the 2nd prominent muscle and the state of grid part butt are also arranged on any face of elasticity separation membrane.Like this, when along with vibration elasticity separation membrane when grid part moves, the 2nd prominent muscle can form resistance, makes the top and the light and slow collision of grid parts surface of the 1st prominent muscle therefore, to have the effect that can fully reduce noise.

In addition, because the 1st prominent muscle and the 2nd prominent muscle are mixed in together, the 2nd prominent muscle is narrower thereby rigidity is little than the 1st the dash forward width of muscle, therefore, has the effect that can avoid the elasticity separation membrane to become and be difficult to move back and forth.

Liquid packaged type vibration control equipment according to technological scheme 2, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 1, because the 2nd prominent muscle is a dispersed placement on the surface of elasticity separation membrane, therefore, also have the resistance that to avoid a plurality of the 2nd prominent muscle and concentrate on effect on the part of elasticity separation membrane.In addition, because the 1st prominent muscle is can being that unit arranges the situation that these grate openings fence up with both grate openings of determined number on the surface of elasticity separation membrane, therefore, when being in the large-amplitude vibration situation, when the top of the 1st prominent muscle and grid part butt, the 1st prominent muscle can be that unit fences up them with both grate openings of determined number, avoid fluid between the grate opening of said both determined number and other grate opening except that them, to flow, therefore, has the effect that can further improve the vibrationproof performance.

Liquid packaged type vibration control equipment according to technological scheme 3, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 2, when being in the large-amplitude vibration situation, when the top of the 1st prominent muscle and grid part butt, the a plurality of the 1st prominent muscle can fence up these grate openings with each grate opening unit of classifying as, prevent that liquid is mobile between the grate opening of the grate opening of any grate opening row and adjacent with it other grate opening row, therefore, also have the effect that can further improve the vibrationproof performance.

In addition, because the 2nd prominent muscle is to arrange radially with respect to the center line of elasticity separation membrane, therefore, has the resistance that to avoid a plurality of the 2nd prominent muscle and concentrate on effect on the part of elasticity separation membrane.

Liquid packaged type vibration control equipment according to technological scheme 4, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 1, because the 1st and the 2nd prominent muscle is can being that the situation that unit fences up them is arranged on the elasticity separation membrane with both grate openings of determined number, therefore, when being in the large-amplitude vibration situation, when the top of the 1st prominent muscle and grid part butt, the 1st prominent muscle and the 2nd prominent muscle can be that unit fences up them with both grate openings of determined number, avoid fluid between the grate opening of both determined number and other grate opening except that them, to flow, therefore, has the effect that can further improve the vibrationproof performance.

Liquid packaged type vibration control equipment according to technological scheme 5, under along with vibration elasticity separation membrane and grid part case of collision, prominent muscle can play the effect of buffer, and the elasticity separation membrane is collided with grid part light and slowly, therefore, has the effect that can reduce noise.

And, when being in the large-amplitude vibration situation, when the top of prominent muscle and grid part butt, prominent muscle can be that unit fences up them with both grate openings of determined number, avoid liquid between the grate opening of said both determined number and other grate opening except that them, to flow, therefore, can prevent that the vibrationproof performance from reducing.

In addition, a grid part among a pair of grid part is to be provided with this one between the inner peripheral surface of tube portion with being integral, therefore, with for example, all grid parts compare when all constituting as separate part with respect to tube portion, can accurately set grid part with respect to the attitude of tube portion the perpendicularity of the center line of tube portion (for example with respect to).In addition, when being installed to other grid part in the portion, can accurately set two intervals between the grid part, accurately set the interval between elasticity separation membrane and two grid parts.Therefore, has the effect that can further improve the vibrationproof performance with this.

According to the liquid packaged type vibration control equipment of technological scheme 6, the top and the grid part that can be in a plurality of prominent muscle are separated, and the top of a plurality of auxiliary prominent muscle and the state of grid part butt are also arranged on any face of elasticity separation membrane.Like this,, assist prominent muscle can form resistance, make the top and the light and slow collision of grid parts surface of prominent muscle therefore, to have the effect that can fully reduce noise when along with vibrating the elasticity separation membrane when grid part moves.

In addition, because auxiliary prominent muscle is a dispersed placement on the surface of elasticity separation membrane, thereby can avoid the resistance of a plurality of auxiliary prominent muscle to concentrate on the part of elasticity separation membrane, in addition, because auxiliary prominent muscle is narrower thereby rigidity is little than prominent muscle, thereby has the effect that can avoid the elasticity separation membrane to become and be difficult to move back and forth.

And, when being in the large-amplitude vibration situation, when the top of prominent muscle and grid part butt, prominent muscle can be that unit fences up them with both grate openings of determined number, thereby can avoid fluid between the grate opening of said both determined number and other grate opening except that them, to flow, have the effect of further raising vibrationproof performance.

Liquid packaged type vibration control equipment according to technological scheme 7, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 6, when being in the large-amplitude vibration situation, when the top of prominent muscle and grid part butt, a plurality of prominent muscle can fence up these grate openings with each grate opening unit of classifying as, prevent that liquid is mobile between the grate opening of the grate opening of any grate opening row and adjacent with it other grate opening row, therefore, also have the effect that can further improve the vibrationproof performance.

In addition, because auxiliary prominent muscle is to arrange radially with respect to the center line of elasticity separation membrane, therefore, has the resistances that to avoid a plurality of auxiliary prominent muscle and concentrate on effect on the part of elasticity separation membrane.

According to the liquid packaged type vibration control equipment of technological scheme 8, have on the 1st displacement restriction projection that is provided with highlightedly on the face of elasticity separation membrane and another face at the elasticity separation membrane or with this another face grid part in opposite directions on the 2nd displacement restriction projection that is provided with highlightedly.Therefore, when along with the vibration elasticity separation membrane of large amplitude during towards the grid part displacement, can the displacement of elasticity separation membrane be limited with the 1st or the 2nd displacement restriction projection that is arranged on this direction of displacement, therefore, thus have and can suppress the effect that the two the collision of elasticity separation membrane and grid part reduces noise.

In addition, on the one-sided at least face (face) of elasticity separation membrane, the 1st displacement restriction projection be arranged on highlightedly with the asymmetrical position of the 2nd displacement restriction projection on.Therefore, when along with the vibration elasticity separation membrane of large amplitude during towards the grid part displacement of the 2nd displacement restriction projection one side, the 1st displacement restriction projection that is arranged on an opposite side of this direction of displacement highlightedly can be carried out the locality reinforcement to the rigidity of elasticity separation membrane, make this elasticity separation membrane be difficult to be subjected to displacement, therefore, have and correspondingly to suppress the two contact of elasticity separation membrane and grid part, thereby further reduce the effect of noise.

On the other hand, because the 1st and the 2nd displacement restriction projection arrangement is on asymmetrical position each other as mentioned above, thereby can reduce an orientation and move of the influence of restriction projection the rigidity at the limited position of non-displacement of the opposing party's displacement restriction projection one side, therefore, have when reducing elasticity separation membrane integral rigidity and can also suppress the two effect that contacts of elasticity separation membrane and grid part.That is the effect that, has the noise when reducing the large amplitude input when low when keeping the input of little amplitude moved the spring characteristic.

Here, in generation for noise, its influence degree is the grid part of the 1st liquid chamber one side or the grid part of the 2nd liquid chamber one side has a great difference because of what contact with the elasticity separation membrane, as long as the 1st and the 2nd displacement restriction projection is constituted to be arranged on the asymmetrical each other position, just can suitably adjust the ratio of the rigidity of face of elasticity separation membrane and another face, therefore, can be in the rigidity that improves one of them face so that the elasticity separation membrane be difficult to reduce of the raising of the rigidity of another face with the integral rigidity of inhibition elasticity separation membrane with when generation to noise has the grid part of considerable influence to contact.Its result has the effect that can take into account the noise when reducing the large amplitude input and keep little amplitude low these the two kinds of opposite requirements of spring characteristic of moving when importing.

Liquid packaged type vibration control equipment according to technological scheme 9, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 8, because the 2nd displacement restriction projection is to be provided with highlightedly on another face of elasticity separation membrane, therefore, also have such effect, that is, do not need grid part is carried out loaded down with trivial details processing, can reduce the manufacture cost that takes place along with the formation of the 2nd displacement restriction projection, correspondingly reduce the manufacture cost of whole liquid packaged type vibration control equipment.

Liquid packaged type vibration control equipment according to technological scheme 10, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 8 and 9, because at least a portion of the 1st and the 2nd displacement restriction projection is to arrange radially with respect to the center line of elasticity separation membrane, therefore, have in the low spring characteristic of moving when keeping little amplitude input suppressing elasticity separation membrane integral rigidity to increase, can make the elasticity separation membrane be difficult to contact and the effect of noise when reducing large amplitude and importing with grid part.

In addition, at least a portion of the 1st displacement restriction projection be between the 2nd displacement restriction projection the neutral position, be that the displacement amount of elasticity separation membrane is maximum and the easiest position that comes in contact with grid part is provided with highlightedly.Therefore, carry out the emphasis reinforcement by the rigidity that the 1st displacement restriction projection can be only has a position of maximum effect to the generation to noise, thereby have the effect of the noise when suppressing effectively to reduce the large amplitude input when elasticity separation membrane integral rigidity improves.Its result has such effect,, can make that the low spring characteristic of moving in the time of should keeping the little amplitude of input, these the two kinds of opposite requirements of noise when making the elasticity separation membrane be difficult to reduce the input large amplitude with the grid part contact are again highly taken into account that is.

Liquid packaged type vibration control equipment according to technological scheme 11, except the effect of the liquid packaged type vibration control equipment of the scheme of possessing skills 9, because the 1st and the 2nd displacement restriction projection has the n bar uniformly-spaced to arrange radially and on circumferentially respectively, the 1st displacement restriction projection is arranged in the angle of rotation of about π/n that upwards staggers in week with respect to the 2nd displacement restriction projection, promptly, each the 1st displacement restriction projection is on the neutral position that is arranged between the 2nd displacement restriction projection, thereby can be as mentioned above, the rigidity at the position that only the generation tool to noise is had a significant impact when suppressing elasticity separation membrane integral rigidity and improving is carried out the emphasis reinforcement, therefore, also has the low spring characteristic of moving that can make in the time of to keep the little amplitude of input, these two kinds of opposite requirements of noise when reducing the input large amplitude are again highly taken into account.

In addition, constitute to have identical approximately each other rising height and spout width with the 2nd displacement restriction projection, thereby can make that the rigidity on two sides of elasticity separation membrane is roughly the same each other owing to the 1st.Therefore, has such effect, promptly, in the assembling procedure of liquid packaged type vibration control equipment, when the elasticity separation membrane being assembled between the grid part of spacer body, do not need the positive and negative of this elasticity separation membrane is discerned, thereby can simplify assembling operation, correspondingly reduce operating cost.

In addition, also have such effect, that is,,, thereby the influence to noise can be reduced to bottom line because the rigidity of this elasticity separation membrane positive and negative is identical even the operating personnel gets the mounting direction of elasticity separation membrane positive and negative wrong.

Liquid packaged type vibration control equipment according to technological scheme 12, except the effect of the liquid packaged type vibration control equipment of arbitrary technological scheme of the scheme of possessing skills 8 to 11, owing to the 1st displacement restriction projection and the 2nd displacement restriction projection are can make top and grid part or elasticity separation membrane butt constitute with its height, promptly, be in the situation that does not have the gap between each displacement restriction projection and elasticity separation membrane or the grid part, therefore, also has such effect, promptly, along with vibration elasticity separation membrane when grid part is subjected to displacement, each displacement restriction projection is contacted with elasticity separation membrane or grid part, thereby avoid the generation of noise.

Liquid packaged type vibration control equipment according to technological scheme 13, except the effect of the liquid packaged type vibration control equipment of arbitrary technological scheme of the scheme of possessing skills 8 to 12, owing to have the supplementary projection that is provided with highlightedly respectively on a face of elasticity separation membrane and another face, therefore, also has such effect, promptly, even when the elasticity separation membrane will contact with grid part, top by supplementary projection contacts with grid part, not only can reduce and grid part between area of contact, but also the elasticity separation membrane is contacted with grid part is light and slow, thereby can correspondingly reduce the effect of noise.

And, compare lowly and spout width is narrow constitutes at least with said the 1st displacement restriction projection owing to supplementary projection with rising height, therefore, can suppress the effect that elasticity separation membrane integral rigidity increases the low spring characteristic of moving when keeping little amplitude input thereby have.

According to the elasticity separation membrane of technological scheme 14, has the identical effect of employed elasticity separation membrane in the liquid packaged type vibration control equipment with arbitrary technological scheme of technological scheme 1 to 13.

Claims

(according to the modification of the 19th of treaty)

1. liquid packaged type vibration control equipment, has the 1st assembly, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that said the 1st liquid chamber and the 2nd liquid chamber are communicated with, said spacer body is to have the elasticity separation membrane, and a pair of grid part that the displacement amount of said elasticity separation membrane is limited from its both sides and constituting, it is characterized in that

Be provided with prominent muscle group on the two sides of said elasticity separation membrane respectively highlightedly, this prominent muscle group constitutes to have a plurality of the 1st prominent muscle mixed in together and a plurality of the 2nd prominent muscle,

The height dimension of the said the 1st prominent muscle is designed to its top and is positioned on the position that separates with said grid part,

The height dimension of the said the 2nd prominent muscle is designed to its top and said grid part butt, and the 2nd prominent muscle width is designed to be narrower than the said the 1st prominent muscle.

2. the liquid packaged type vibration control equipment of putting down in writing as claim 1, it is characterized in that, the said the 1st prominent muscle to be can being that the situation that unit fences up these grate openings is arranged on the surface of said elasticity separation membrane with both grate openings of determined number, the said the 2nd prominent muscle dispersed placement on the surface of said elasticity separation membrane.

3. the liquid packaged type vibration control equipment of putting down in writing as claim 2 is characterized in that,

Said grate opening upwards is furnished with multiple row in the week of said grid part,

The said a plurality of the 1st prominent muscle forms in the form of a ring, can be in the footpath of said grid part upwards respectively with the grid part part butt of the both sides of each grate opening row,

The said a plurality of the 2nd prominent muscle is arranged radially with respect to the center line of said elasticity separation membrane.

4. the liquid packaged type vibration control equipment of putting down in writing as claim 1 is characterized in that, the said the 1st prominent muscle and the 2nd prominent muscle are can being that the situation that unit fences up these grate openings is arranged on the surface of said elasticity separation membrane with both grate openings of determined number.

5. (deletion)

6. (after the revisal) a kind of liquid packaged type vibration control equipment, has the 1st assembly, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that said the 1st liquid chamber and the 2nd liquid chamber are communicated with, said spacer body is to have the elasticity separation membrane, the tube portion that holds this elasticity separation membrane, and a pair of grid part that the displacement amount of the elasticity separation membrane in the said tube portion is limited from its both sides and constituting, it is characterized in that

A grid part among the said a pair of grid part is located between the inner peripheral surface of said tube portion, fuses with this one,

Being formed with respectively on the two sides of said elasticity separation membrane to be a plurality of prominent muscle that unit fences up these grate openings with both grate openings of determined number, and on the two sides of said elasticity separation membrane respectively dispersed placement a plurality of auxiliary prominent muscle are arranged,

The height dimension of said prominent muscle is designed to its top and is positioned on the position that separates with said grid part,

The height dimension of said auxiliary prominent muscle is designed to its top and said grid part butt, and auxiliary prominent muscle width is designed to be narrower than said prominent muscle.

7. the liquid packaged type vibration control equipment of putting down in writing as claim 6 is characterized in that,

Said grate opening upwards is furnished with multiple row in the week of said grid part,

Said a plurality of prominent muscle forms in the form of a ring, can be in the footpath of said grid part upwards respectively with the grid part part butt of the both sides of each grate opening row,

Said auxiliary prominent muscle is arranged radially with respect to the center line of said elasticity separation membrane.

8. liquid packaged type vibration control equipment, has the 1st assembly, the 2nd assembly of tubular, the main vibration absorber that constitutes by the rubber-like elasticity material that connects the 2nd assembly and said the 1st assembly, be installed in the diaphragm that forms liquid encapsulation chamber between the main vibration absorber on said the 2nd assembly and said, said liquid encapsulation chamber is divided into the spacer body of the 2nd liquid chamber of the 1st liquid chamber of said main vibration absorber one side and said diaphragm one side, and the throttle orifice that said the 1st liquid chamber and the 2nd liquid chamber are communicated with, said spacer body is to have the elasticity separation membrane, and a pair of grid part that the displacement amount of said elasticity separation membrane is limited from its both sides and constituting, it is characterized in that

Have on the 1st displacement restriction projection that is provided with highlightedly on the face of said elasticity separation membrane and another face at said elasticity separation membrane or from this another face said grid part in opposite directions on the 2nd displacement restriction projection that is provided with highlightedly,

Said the 1st displacement restriction projection arrangement is being on the asymmetrical position with respect to the imaginary plane and said the 2nd displacement restriction projection of passing from the central authorities of the thickness direction of said elasticity separation membrane.

9. the liquid packaged type vibration control equipment of putting down in writing as claim 8 is characterized in that, said the 2nd displacement restriction projection is to be provided with highlightedly from another face of said elasticity separation membrane.

10. the liquid packaged type vibration control equipment of being put down in writing as claim 8 or 9 is characterized in that,

At least a portion of said the 2nd displacement restriction projection is furnished with many radially with respect to the center line of said elasticity separation membrane,

At least a portion of said the 1st displacement restriction projection is arranged with respect to the center line of said elasticity separation membrane radially said the layout radially and the about neutral position between a pair of the 2nd displacement restriction projection adjacent one another are is located.

11. the liquid packaged type vibration control equipment as claim 9 is put down in writing is characterized in that,

Said the 1st displacement restriction projection and the 2nd displacement restriction projection have the n bar uniformly-spaced to arrange radially and on circumferentially with respect to the center line of said elasticity separation membrane respectively,

Said the 1st displacement restriction projection is arranged in the angle of rotation of about π/n that upwards staggers in week with respect to said the 2nd displacement restriction projection, and said the 1st displacement restriction projection has approximately identical rising height and spout width with the 2nd displacement restriction projection.

12. the liquid packaged type vibration control equipment of putting down in writing as arbitrary claim of claim 8 to 11, it is characterized in that said the 1st displacement restriction projection and said the 2nd displacement restriction projection can constitute with the height of said grid part or said elasticity separation membrane butt with its top.

13. the liquid packaged type vibration control equipment of putting down in writing as arbitrary claim of claim 8 to 12, it is characterized in that, have the supplementary projection that is provided with highlightedly respectively on face of said elasticity separation membrane and another face, this supplementary projection is so that low and spout width constitutes than the rising height of said the 1st displacement restriction projection at least narrowly.

14. an elasticity separation membrane is characterized in that, is the elasticity separation membrane that uses in the liquid packaged type vibration control equipment that arbitrary claim of claim 1 to 13 is put down in writing.

Claims (14)

1. A liquid-encapsulated anti-vibration device having a first mounting part, a cylindrical second mounting part, and a main anti-vibration body made of a rubber-like elastic material that connects the second mounting part and the first mounting part , the diaphragm that forms the liquid sealing chamber between the main anti-vibration body installed on the second mounting part, and divides the liquid sealing chamber into the first liquid chamber on the side of the main anti-vibration body and The partition body of the second liquid chamber on the side of the diaphragm and the orifice connecting the first liquid chamber and the second liquid chamber, the partition body has an elastic separation film, and the elastic partition The displacement of the diaphragm is constituted by a pair of grill members that restrict the displacement of the diaphragm, and it is characterized in that, Bead groups are protrudingly provided on both surfaces of the elastic separation membrane, and the bead group is configured by having a plurality of first bead and a plurality of second bead mixed together, The height dimension of said first rib is designed so that its top is located at a position separated from said grille member, The height dimension of the second bead is designed such that its top abuts against the grill member, and the width of the second bead is designed to be narrower than that of the first bead. 2. The liquid-encapsulated anti-vibration device as claimed in claim 1, wherein said first ribs are arranged on said elastic surface in such a manner that the grid holes can be surrounded by a predetermined number of grid holes. On the surface of the separation membrane, the second ribs are scattered and arranged on the surface of the elastic separation membrane. 3. The liquid-encapsulated anti-vibration device as claimed in claim 2, wherein: The grid holes are arranged in multiple rows in the circumferential direction of the grid component, The plurality of first ribs are formed in an annular shape, and can respectively abut against the grill parts on both sides of each grill hole row in the radial direction of the grill parts, The plurality of second ribs are radially arranged relative to the center line of the elastic separation membrane. 4. The liquid-encapsulated anti-vibration device as claimed in claim 1, wherein said first ribs and second ribs are arranged in such a way that these grid holes can be surrounded by a predetermined number of grid holes on the surface of the elastic separation membrane. 5. A liquid-encapsulated anti-vibration device having a first mounting part, a cylindrical second mounting part, and a main anti-vibration body made of a rubber-like elastic material that connects the second mounting part and the first mounting part , the diaphragm that forms the liquid sealing chamber between the main anti-vibration body installed on the second mounting part, and divides the liquid sealing chamber into the first liquid chamber on the side of the main anti-vibration body and The partition body of the second liquid chamber on the side of the diaphragm and the orifice connecting the first liquid chamber and the second liquid chamber, the partition body has an elastic separation film and accommodates the elastic separation film. a cylindrical portion, and a pair of grid members that restrict the displacement of the elastic separation membrane in the cylindrical portion from both sides thereof, and are characterized in that One of the pair of grid members is arranged between the inner peripheral surfaces of the cylindrical portion and is integrally connected with the cylindrical portion, A plurality of ribs capable of surrounding a predetermined number of grid holes are respectively formed on both surfaces of the elastic separation film. 6. The liquid-encapsulated anti-vibration device as claimed in claim 5, wherein: A plurality of auxiliary ribs are dispersedly arranged on both sides of the elastic separation membrane, said bead is dimensioned in height so that its top is located at a position separate from said grille member, The height dimension of the auxiliary bead is designed such that its top abuts against the grill part, and the width of the auxiliary bead is designed to be narrower than that of the bead. 7. The liquid-encapsulated anti-vibration device as claimed in claim 6, wherein: The grid holes are arranged in multiple rows in the circumferential direction of the grid component, The plurality of protruding ribs are formed in a ring shape, and can respectively abut against the grill parts on both sides of each grill hole row in the radial direction of the grill parts, The auxiliary ribs are radially arranged relative to the center line of the elastic separation membrane. 8. A liquid-encapsulated anti-vibration device having a first mounting part, a cylindrical second mounting part, and a main anti-vibration body made of rubber-like elastic material connecting the second mounting part and the first mounting part , the diaphragm that forms the liquid sealing chamber between the main anti-vibration body installed on the second mounting part, and divides the liquid sealing chamber into the first liquid chamber on the side of the main anti-vibration body and The partition body of the second liquid chamber on the side of the diaphragm and the orifice connecting the first liquid chamber and the second liquid chamber, the partition body has an elastic separation film, and the elastic partition The displacement of the diaphragm is constituted by a pair of grill members that restrict the displacement of the diaphragm, and it is characterized in that, It has a first displacement restricting protrusion protrudingly provided on one surface of the elastic partition film, and protruding from the other surface of the elastic partition film or from the grill member facing the other surface. Set the 2nd displacement limiting protrusion, The first displacement regulating protrusion is arranged at a position asymmetrical to the second displacement regulating protrusion with respect to a virtual plane passing through the center of the elastic separation film in the thickness direction. 9. The liquid-encapsulated anti-vibration device according to claim 8, wherein said second displacement regulating protrusion is protruded from the other surface of said elastic separation film. 10. The liquid-encapsulated anti-vibration device as claimed in claim 8 or 9, wherein: A plurality of at least a part of the second displacement limiting protrusions are radially arranged with respect to the center line of the elastic separation film, At least a part of the first displacement limiting protrusions is radially arranged with respect to the center line of the elastic separation film at about the middle position between the pair of second displacement limiting protrusions arranged radially and adjacent to each other. layout. 11. The liquid-encapsulated anti-vibration device as claimed in claim 9, wherein: There are n pieces of the first displacement limiting protrusions and the second displacement limiting protrusions that are radially arranged with respect to the center line of the elastic separation membrane and arranged at equal intervals in the circumferential direction, The first displacement limiting protrusion is arranged with a rotational angle staggered by about π/n relative to the second displacement limiting protrusion in the circumferential direction, and the first displacement limiting protrusion and the second displacement limiting protrusion have approximately the same protrusion height and protrusion width. 12. The liquid-encapsulated anti-vibration device according to any one of claims 8 to 11, wherein the tops of the first displacement limiting protrusion and the second displacement limiting protrusion can be aligned with the grid. The height at which the gate member or the elastic separation film abuts is formed. 13. The liquid-encapsulated anti-vibration device according to any one of claims 8 to 12, wherein there are auxiliary protrusions protrudingly provided on one surface and the other surface of the elastic separation film, The auxiliary protrusions are at least lower in height and narrower in width than the first displacement limiting protrusions. 14. An elastic separation film, characterized in that it is the elastic separation film used in the liquid-encapsulated anti-vibration device according to any one of claims 1 to 13.

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