阅读说明：本技术 振动体单元及振动体保持结构 (It vibrates body unit and vibrating body keeps structure ) 是由 小林刚 于 2019-05-07 设计创作，主要内容包括：提供能实现振动吸收性能的进一步的提高并且稳定地支承振动体的振动体单元及振动体保持结构。振动体单元(1)具备：振动体(10)；内筒(41),其包围在所述振动体(10)的周围,且能够弹性变形；外筒(65),其包围在所述内筒(41)的周围,且具有安装于基座部(35)的安装部(63)；多个第一间隔件(22),它们介于所述振动体(10)与所述内筒(41)之间,且在周向上隔开间隔地配置；多个第二间隔件(42),它们介于所述内筒(41)与所述外筒(65)之间,且在周向上隔开间隔地配置,多个所述第一间隔件(22)与多个所述第二间隔件(42)配置于夹着所述内筒(41)而至少一部分分别在径向上对置的位置。(The further vibration body unit for improving and steadily supporting vibrating body for being able to achieve vibration absorption is provided and vibrating body keeps structure.Vibration body unit (1) has: vibrating body (10)；Inner cylinder (41) is enclosed in around the vibrating body (10), and being capable of flexible deformation；Outer cylinder (65) is enclosed in around the inner cylinder (41), and has the mounting portion (63) for being installed on base portion (35)；Multiple first spacers (22), they are configured at spaced intervals in the circumferential between the vibrating body (10) and the inner cylinder (41)；Multiple second spacers (42), they are between the inner cylinder (41) and the outer cylinder (65), and configure at spaced intervals in the circumferential, multiple first spacers (22) are configured at multiple second spacers (42) to be clipped the inner cylinder (41) and distinguishes position opposed radially at least partially.)

1. a kind of vibration body unit, wherein

The vibration body unit has:

Vibrating body；

Inner cylinder is enclosed in around the vibrating body, and being capable of flexible deformation；

Outer cylinder is enclosed in around the inner cylinder, and has the mounting portion for being installed on base portion；

Multiple first spacers, they match at spaced intervals in the circumferential between the vibrating body and the inner cylinder It sets；And

Multiple second spacers, they are configured at spaced intervals in the circumferential between the inner cylinder and the outer cylinder,

Multiple first spacers and multiple second spacer arrangements in clip the inner cylinder and at least part respectively Opposed position radially.

2. vibration body unit according to claim 1, wherein

First spacer is integrally formed at either one in the vibrating body and the inner cylinder,

Second spacer is integrally formed at either one in the inner cylinder and the outer cylinder.

3. vibration body unit according to claim 1 or 2, wherein

First spacer is integrally formed at the vibrating body.

4. vibration body unit according to any one of claim 1 to 3, wherein

First spacer is integrally formed at the inner cylinder.

5. vibration body unit according to any one of claim 1 to 4, wherein

Second spacer is integrally formed at the inner cylinder.

6. vibration body unit according to any one of claim 1 to 5, wherein

Second spacer is integrally formed at the outer cylinder.

7. vibration body unit according to claim 1, wherein

At least either member in the vibrating body and the inner cylinder is formed with the first limiting unit, which limits institute State the movement of the first spacer in the circumferential relative at least either member.

8. vibration body unit according to claim 1, wherein

At least either member in the inner cylinder and the outer cylinder is formed with the second limiting unit, described in second limiting unit limitation Movement of second spacer relative at least either member in the circumferential.

9. vibration body unit according to any one of claim 1 to 8, wherein

The outer cylinder has:

First supporting part, with the mounting portion；And

Second supporting part is linked to first supporting part, and is enclosed in the inner cylinder together with first supporting part Around.

10. a kind of vibrating body keeps structure, wherein

The vibrating body keeps structure to have:

Inner cylinder is enclosed in around vibrating body, and being capable of flexible deformation；

Outer cylinder is enclosed in around the inner cylinder, and has the mounting portion for being installed on base portion；

Multiple first spacers, they match at spaced intervals in the circumferential between the vibrating body and the inner cylinder It sets；And

Multiple second spacers, they are configured at spaced intervals in the circumferential between the inner cylinder and the outer cylinder,

Multiple first spacers and multiple second spacer arrangements in clip the inner cylinder and at least part respectively Opposed position radially.

Technical field

The present invention relates to vibration body units and vibrating body to keep structure.

Background technique

In the component for being equipped on vehicle, there is the component (vibrating body) in movement with vibration.As vibrating body, Such as exist make cooling water radiator with cool down object (such as engine, inverter etc.) between recycle electric water pump (with It is referred to as EWP down).In EWP, such as in the motor rotation for being equipped on EWP, because pulsation of the cooling water by EWP etc. produces Raw vibration.When the vibration generated by EWP is transmitted to vehicle body via bracket etc., it is possible to which vibration perception is abnormal make an uproar by passenger The durability of the installation section of sound or vehicle body and bracket reduces.

Then, it such as in Japanese Laid-Open 2003-4099 bulletin, discloses and has and will be surrounded around vibrating body Fixing component and the structure of spaced multiple elastic tabs in the circumferential between vibrating body and fixing component.

According to this structure, it discloses to be able to suppress and absorbing the vibration generated by vibrating body using elastic tabs and make an uproar The generation of sound.

Summary of the invention

However, in the further raising for realizing vibration absorption and stablizing twelve Earthly Branches in above-mentioned conventional art It holds on this aspect of vibrating body and even there is room for improvement.

The solution of the present invention provides the further raising that can be realized vibration absorption and steadily bearing vibration The vibration body unit and vibrating body of body keep structure.

(1) the vibration body unit of a scheme of the invention has: vibrating body；Inner cylinder is enclosed in the week of the vibrating body It encloses, and being capable of flexible deformation；Outer cylinder is enclosed in around the inner cylinder, and has the mounting portion for being installed on base portion； Multiple first spacers, they are configured at spaced intervals in the circumferential between the vibrating body and the inner cylinder；With And multiple second spacers, they are configured at spaced intervals in the circumferential between the inner cylinder and the outer cylinder, more A first spacer and multiple second spacer arrangements in clip the inner cylinder and at least part respectively in radial direction Upper opposed position.

(2) in the vibration body unit of the scheme of above-mentioned (1), it is also possible to first spacer and is integrally formed at institute Either one in vibrating body and the inner cylinder is stated, second spacer is integrally formed in the inner cylinder and the outer cylinder Either one.

(3) in the vibration body unit of the scheme of above-mentioned (1) or (2), it is integrally formed to be also possible to first spacer In the vibrating body.

(4) in the vibration body unit of either a program, it is also possible to the first spacer one into (3) in above-mentioned (1) It is formed in the inner cylinder.

(5) in the vibration body unit of above-mentioned (1) to either (4) case, it is also possible to the second spacer one It is formed in the inner cylinder.

(6) in the vibration body unit of either a program, it is also possible to the second spacer one into (5) in above-mentioned (1) It is formed in the outer cylinder.

(7) in above-mentioned (1) into (6) in the vibration body unit of either a program, it is also possible in the vibrating body and described At least either member in inner cylinder is formed with the first limiting unit, which limits first spacer relative to described At least movement of either member in the circumferential.

(8) in above-mentioned (1) into (7) in the vibration body unit of either a program, it is also possible in the inner cylinder and described outer At least either member in cylinder is formed with the second limiting unit, second limiting unit limit second spacer relative to it is described extremely The few movement of either member in the circumferential.

(9) in the vibration body unit of either a program, it is also possible to the outer cylinder into (8) in above-mentioned (1) and has: first Supporting part, with the mounting portion；And second supporting part, it is linked to first supporting part, and with described first Supporting part is enclosed in together around the inner cylinder.

(10) vibrating body of another program of the invention keeps structure to have: inner cylinder is enclosed in around vibrating body, and It being capable of flexible deformation；Outer cylinder is enclosed in around the inner cylinder, and has the mounting portion for being installed on base portion；Multiple One spacer, they are configured at spaced intervals in the circumferential between the vibrating body and the inner cylinder；And second Spacer is located between the inner cylinder and the outer cylinder and is spaced at least partially with described first across the inner cylinder Part opposed position radially.

According to the scheme of above-mentioned (1), (10), vibrating body is supported on inner cylinder via the first spacer, and inner cylinder is via second Spacer and be supported on outer cylinder.That is, vibrating body and inner cylinder each other partially in contact with, and interior barrel and an external barrel each other partially in contact with. Therefore, it is directly contacted compared to the outer peripheral surface of vibrating body with the inner peripheral surface of inner cylinder and the inner peripheral surface of the outer peripheral surface of inner cylinder and outer cylinder is straight The case where contact, can reduce contact area.Thereby, it is possible to inhibit the vibration generated by vibrating body to be transmitted to outer cylinder.Therefore, It is able to suppress vibration to transmit via outer cylinder is equal into car room, and can be improved at the installation section of base portion of outer cylinder and vehicle body Durability.

Especially, (1), (10) scheme in, the first spacer with the second spacer clips inner cylinder and right radially It sets.Therefore, the load (press load) of the vibrating body acted on via the first spacer and to inner cylinder, outer cylinder is via the first interval Part is acted on the second spacer of the first spacer arrangement on the same line.As a result, for example compared to the first spacer The case where configuring with deviating in the circumferential with the second spacer, can steadily support vibrating body.

Moreover, only passing through the tolerance of the first spacer of management, the second spacer, it will be able to which management role is in inner cylinder, outer cylinder Load.Therefore, it is directly contacted with the inner peripheral surface of inner cylinder compared to the outer peripheral surface of vibrating body and the outer peripheral surface of inner cylinder and outer cylinder The case where inner peripheral surface directly contacts, manufacturing management become easy.Therefore, it can be realized cost effective.

According to the scheme of above-mentioned (2), compared to making seperated spacer between vibrating body and inner cylinder and make seperated The case where spacer is between inner cylinder and outer cylinder can be realized the reduction of components number, the raising of assemblability.

According to the scheme of above-mentioned (3), the first spacer is integrally formed at vibrating body, therefore can be realized inner cylinder, outer cylinder Simplify.

According to the scheme of above-mentioned (4), the first spacer is integrally formed at inner cylinder, therefore for example forms first in vibrating body The case where spacer, is compared, in the overhang of the second spacer of adjustment (tuning), it is not easy to be influenced by surrounding member. Thereby, it is possible to keep manufacturing management more simplified, can be realized cost effective.

According to the scheme of above-mentioned (5), the second spacer is integrally formed at inner cylinder, therefore for example and between outer cylindrical is at second The case where spacing body, is compared, in the overhang of the second spacer of adjustment (tuning), it is not easy to be influenced by surrounding member.By This, can make manufacturing management more simplified, can be realized cost effective.

According to the scheme of above-mentioned (6), the second spacer is integrally formed at outer cylinder, therefore can be realized inner cylinder, vibrating body Simplify.

According to the scheme of above-mentioned (7), the relative movement of at least either member and the first spacer in the circumferential can be limited And inhibit the dislocation of the first spacer and the second spacer.As a result, vibrating body can be supported steadily in the long term.

It, will be at least between either member and first in addition, in the state of making the first spacer and the first limiting unit has aligned Spacing body assembles, thus, it is possible to by the first spacer arrangement in desired position.Therefore, vibrating body and inner cylinder be can be improved Assemblability.

According to the scheme of above-mentioned (8), the relative movement of at least either member and the second spacer in the circumferential can be limited And inhibit the dislocation of the first spacer and the second spacer.As a result, vibrating body can be supported steadily in the long term.

It, will be at least between either member and second in addition, in the state of making the second spacer and the second limiting unit has aligned Spacing body assembles, thus, it is possible to by the second spacer arrangement in desired position.Therefore, outer cylinder and inner cylinder be can be improved Assemblability.

According to the scheme of above-mentioned (9), outer cylinder segmentation is configured to the first supporting part and the second supporting part.As a result, for example not When carrying same vibrating body between same vehicle, the first bearing with mounting portion is suitably being replaced according to vehicle On the basis of portion, the second supporting part can be independently used with vehicle.Thereby, it is possible to keep the second supporting part total between each vehicle With change, therefore can be realized cost effective.

Detailed description of the invention

Fig. 1 is the diagrammatic cross-sectional view of the pump unit of embodiment.

Fig. 2 is the enlarged cross-sectional view of the pump unit of first variation.

Fig. 3 is the enlarged cross-sectional view of the pump unit of the second variation.

Fig. 4 is the enlarged cross-sectional view of the pump unit of the second variation.

Fig. 5 is the enlarged cross-sectional view of the pump unit of the second variation.

Fig. 6 is the enlarged cross-sectional view of the pump unit of the second variation.

Specific embodiment

Hereinafter, being illustrated based on the drawings embodiments of the present invention.It should be noted that in each embodiment party described below In formula, for corresponding structure, same appended drawing reference is marked sometimes and is omitted the description.

Fig. 1 is the diagrammatic cross-sectional view of pump unit 1.

Pump unit (vibration body unit) 1 shown in FIG. 1 is for example equipped on the engine room of vehicle.Specifically, this implementation The pump unit 1 of mode has EWP (vibrating body) 10 and the EWP10 vibrating body for being installed on vehicle body is kept structure 11.

<EWP>

EWP10 is set on the cooling circuit for connecting radiator with cooling object (such as engine, inverter etc.). EWP10 carries out pressurized delivered to the cooling water flowed in cooling circuit.EWP10 has cylindric shell 21.In theory below In bright, it will be referred to as axially, direction orthogonal to the axial direction being referred to as radial direction along the direction of the axes O of shell 21, it will be around axes O The direction turn-taked is referred to as circumferential.

Drive chamber, pump chamber are for example formed in shell 21.

Motor, circuit substrate etc. are accommodated in drive chamber.Motor, which has, to be fixed on the indoor stator of driving and is configured to The rotor that the inside of stator can rotate.Oriented radial outside 22 (the first interval of the first protruding portion outstanding is formed in shell 21 Part).First protruding portion 22 is formed with multiple (such as 4) at spaced intervals in the circumferential.

Impeller is accommodated in pump chamber.Impeller rotates in pump chamber with the rotation of rotor.Cooling supply is formed in pump chamber But water, which flows into, pumps indoor inflow port and Cooling Water from the ejection port of pump chamber pressurized delivered.

<vibrating body holding structure>

Vibrating body keeps structure 11 to have elastic component 31 and bracket 32.Vibrating body keeps structure 11 to prop up via bracket 32 The base portion 35 in vehicle body is held, and supports EWP10 via elastic component 31.

Elastic component 31 has spring cylinder (inner cylinder) 41 and the second protruding portion (the second spacer) 42.

Spring cylinder 41 is formed by the material that rubber etc. is capable of flexible deformation.Spring cylinder 41 is with the outer peripheral surface with shell 21 in diameter The state at spaced up interval is enclosed in around shell 21.On the inner peripheral surface of spring cylinder 41, protruded with above-mentioned first The identical circumferential position in portion 22 forms the first limiting unit 44 of oriented radial outside recess.First protruding portion 22 is respectively accommodated in One limiting unit 44.

The circumferential width of first limiting unit 44 is formed as the width of the first protruding portion 22 or more.The diameter of first limiting unit 44 To depth it is more shallow than the radial height of the first protruding portion 22.Therefore, elastic component 31 is only with the inner surface of the first limiting unit 44 It contacts with EWP10 (the first protruding portion 22), is separated radially at the part other than the first limiting unit 44 with EWP10.It needs It is noted that width, depth of the first limiting unit 44 etc. can be suitably changed according to the shape of the first protruding portion 22.

Second protruding portion 42 and spring cylinder 41 are integrally formed.Second protruding portion 42 from the outer peripheral surface of spring cylinder 41 with The identical circumferential position of one limiting unit 44 is provided projectingly to radial outside.

In the present embodiment, the circumferential width of the second protruding portion 42 becomes the width of the first limiting unit 44 or more.Cause This, the second protruding portion 42 it is circumferential it is whole across spring cylinder 41 and radially with the first limiting unit 44 and the first protruding portion 22 It is opposed.That is, in the present embodiment, the first opposed protruding portion 22 and the second protruding portion 42 are with axes O each other radially Center radial configuration.However, at least part of the second protruding portion 42 and the first limiting unit 44 and the first protruding portion 22 are right It sets.

Bracket 32 is formed as the tubular being enclosed in around elastic component 31.In the present embodiment, bracket 32 has Two parts divided in circumferential direction.One in two parts divided in the circumferential is the first supporting part 51.In Another in two parts divided in circumferential direction is the second supporting part 52.

First supporting part 51 has the first arc sections 55 and the first installation sheet 56.

First arc sections 55 are formed as the arc-shaped centered on axes O.First arc sections 55 are with outer with spring cylinder 41 Circumferential surface radially interval state configuration.

First installation sheet 56 is provided projectingly to radial outside respectively from the circumferential both ends in the first arc sections 55.

Second supporting part 52 has the second arc sections 61, the second installation sheet 62 and stay (mounting portion) 63.

Second arc sections 61 are formed as centered on axes O and the circle with the radius of curvature same with the first arc sections 55 Arcuation.Second arc sections 61 with the outer peripheral surface with spring cylinder 41 radially interval state configuration.

Second installation sheet 62 is provided projectingly to radial outside respectively from the circumferential both ends in the second arc sections 61.

Stay 63 is provided projectingly from the circumferential midway portion in the second arc sections 61.Stay 63 is fixed on above-mentioned pedestal Portion 35.

In above-mentioned bracket 32, in the state that the first installation sheet 56 is Chong Die with the second installation sheet 62, the first installation Piece 56 and the connection secured to one another of the second installation sheet 62.The first arc sections 55 and the second arc sections 61 composition are enclosed in elasticity as a result, Bearing cylinder (outer cylinder) 65 around component 31.It should be noted that in the present embodiment, illustrating each arc sections 55,61 The central angle centered on axes O the case where being 180 °, but be not only defined in the structure.The center of each arc sections 55,61 As long as angle is total to be set as 360 °, can suitably change.In addition, bearing cylinder 65 also can be integrally-formed as tubular.

In the circumferential position identical with the second above-mentioned protruding portion 42 of the inner peripheral surface of bearing cylinder 65, formed outside oriented radial direction Second limiting unit 69 of side recess.Contain the second protruding portion 42 respectively in the second limiting unit 69.The week of second limiting unit 69 To width be formed as the width of the second protruding portion 42 or more.The radial depth of second limiting unit 69 is than the second protruding portion 42 Radial height is shallow.Therefore, bearing cylinder 65 is only contacted with the inner surface of the second limiting unit 69 with elastic component 31, in the second limitation It is separated radially at part other than portion 69 with elastic component 31 (spring cylinder 41).It should be noted that the second limiting unit 69 width, depth etc. can be suitably changed according to the shape of the first protruding portion 22.

In the pump unit 1 of present embodiment, with the movement of EWP10 the vibration that generates via the first protruding portion 22 to Elastic component 31 transmits, and is thus attenuated in elastic component 31.

In the pump unit 1 of present embodiment, EWP10 is supported on elastic component 31 via the first protruding portion 22, elasticity Component 31 is supported on bracket 32 via the second protruding portion 42.That is, shell 21 and elastic component 31 are each other partially in contact with and bullet Property component 31 and bracket 32 each other partially in contact with.Therefore, compared to the inner peripheral surface of the outer peripheral surface of shell 21 and elastic component 31 Directly contact and the case where the outer peripheral surface of elastic component 31 and the inner peripheral surface of bracket 32 directly contact, can reduce contact area. Thereby, it is possible to inhibit the vibration generated by EWP10 to be transmitted to bracket 32.Therefore, vibration is able to suppress via bracket 32 to car room Interior transmitting, further, it is possible to improve the durability at the installation section of stay 63 and base portion 35.

Especially, in the present embodiment, using the first protruding portion 22 and the second protruding portion 42 clip spring cylinder 41 and Opposed structure radially.

According to this structure, the load (pressing of the EWP10 acted on via the first protruding portion 22 to elastic component 31, bracket 32 Load) via the first protruding portion 22, with the first protruding portion 22 configuration the second protruding portion 42 on the same line and intensively into Row effect.The case where for example configuring with deviating in the circumferential compared to the first protruding portion 22 and the second protruding portion 42 as a result, can Steadily support EWP10.

Therefore, in the pump unit of present embodiment 1, it can be realized the further raising of vibration absorption, and Steadily support EWP10.

Moreover, in the present embodiment, only passing through the tolerance of the first protruding portion 22 of management, the second protruding portion 42, it will be able to Management role is in the load of elastic component 31, bracket 32.Therefore, compared to the inner circumferential of the outer peripheral surface of shell 21 and elastic component 31 The case where face directly contacts and the inner peripheral surface of the outer peripheral surface of elastic component 31 and bracket 32 directly contacts, manufacturing management becomes to hold Easily.Therefore, it can be realized cost effective.

In the present embodiment, it is integrally formed with shell 21 using the first protruding portion 22 and the second protruding portion 42 and bullet The structure that property cylinder 41 is integrally formed.

According to this structure, such as compared to making seperated spacer between shell 21 and spring cylinder 41 and make seperated The case where spacer is between spring cylinder 41 and bearing cylinder 65, can be realized the reduction of components number, the raising of assemblability.

In the present embodiment, the first protruding portion 22 and shell 21 are integrally formed, therefore can be realized elastic component 31, support The simplification of frame 32.

In the present embodiment, the second protruding portion 42 and spring cylinder 41 are integrally formed, therefore for example and in shell 21, bracket The case where 32 formation protruding portion, is compared, in the overhang of the second protruding portion 42 of adjustment (tuning), it is not easy to by periphery structure The influence of part.Thereby, it is possible to keep manufacturing management more simplified, can be realized cost effective.

In the structure of present embodiment, the first protruding portion 22 is contained in the first limiting unit 44.

According to this structure, EWP10 can be limited and inhibit first prominent relative to the movement in the circumferential of elastic component 31 The dislocation in portion 22 and the second protruding portion 42.As a result, EWP10 can be supported steadily in the long term.

In addition, by EWP10 and elastic component 31 in the state of making the first protruding portion 22 and the first limiting unit 44 has aligned It assembles, thus, it is possible to the first protruding portion 22 is configured at desired position.Therefore, EWP10 and elastic structure be can be improved The assemblability of part 31.

In the structure of present embodiment, the second protruding portion 42 is contained in the second limiting unit 69.

According to this structure, the second protruding portion 42 can be limited relative to the movement in the circumferential of bracket 32 to inhibit first prominent The dislocation in portion 22 and the second protruding portion 42 out.As a result, EWP10 can be supported steadily in the long term.

In addition, by elastic component 31 and bracket 32 in the state that the second protruding portion 42 and the second limiting unit 69 have been aligned It assembles, thus, it is possible to the second protruding portion 42 is configured at desired position.Therefore, bracket 32 and elastic structure be can be improved The assemblability of part 31.

In the structure of present embodiment, bearing cylinder 65 surrounds elasticity using the first arc sections 55 and the second arc sections 61 Cylinder 41.

According to this structure, the segmentation of bearing cylinder 65 is configured to the first arc sections 55 and the second arc sections 61.As a result, for example not When carrying same EWP10 between same vehicle, the second supporting part with stay 63 is suitably being replaced according to vehicle On the basis of 52, the first supporting part 51 can be independently used with vehicle.That is, can make the first supporting part 51 between each vehicle Sharing, therefore can be realized cost effective.

It should be noted that the first protruding portion 22 and the second protruding portion 42 that illustrate above-mentioned embodiment are with trend The structure of radial outside and the tapering width of circumferential direction, but not only it is defined in the structure.First protruding portion 22 and second is prominent The shape in portion 42 can suitably change out.

(first variation)

Then, illustrate the variation of above-mentioned embodiment.

In the above-described embodiment, it is illustrated as limiting unit from the inner circumferential of bearing cylinder 65 and spring cylinder 41 towards diameter The structure being recessed outward, but not only it is defined in the structure.Such as second limiting unit 69 be also possible to bracket as shown in Figure 2 32 like that, and the part from the circumferential two sides positioned at the second protruding portion 42 in the inner peripheral surface of bearing cylinder 65 is outstanding to radially inner side Structure.

(the second variation)

In the above-described embodiment, it illustrates to be formed with the first protruding portion 22 in shell 21 and be formed in spring cylinder 41 The case where second protruding portion 42, but not only it is defined in the structure.

Such as it as shown in figure 3, can also be formed between bearing cylinder 65 and spring cylinder 41 in the inner peripheral surface of bearing cylinder 65 The second protruding portion 100 (the second spacer).In this case, first limiting unit and the second limit can also be set in spring cylinder 41 Portion processed.By being integrally formed the second protruding portion 100 in bearing cylinder 65, the simplification of spring cylinder 41 can be realized.

As shown in figure 4, being also possible to form the between spring cylinder 41 and shell 21 in the inner peripheral surface of spring cylinder 41 One protruding portion 101 (the first spacer) forms the between bearing cylinder 65 and spring cylinder 41 in the inner peripheral surface of bearing cylinder 65 Two protruding portions 102 (the second spacer).In this case, it is also possible to that the first limiting unit is arranged in shell 21, in spring cylinder 41 Second limiting unit is set.

As shown in figure 5, being also possible to form the between spring cylinder 41 and shell 21 in the inner peripheral surface of spring cylinder 41 One protruding portion 105 (the first spacer) forms the between bearing cylinder 65 and spring cylinder 41 in the outer peripheral surface of spring cylinder 41 Two protruding portions 106 (the second spacer).In this case, it is also possible to that the first limiting unit is arranged in shell 21, in bearing cylinder 65 Second limiting unit is set.

Have as shown in fig. 6, being also possible to the first protruding portion 110 (the first spacer): Medial extrusion 111, from bullet Property cylinder 41 is prominent to radially inner side；And outside protruding portion 112, it is prominent from shell 21 to radial outside, and be connected to interior Side protruding portion 111.

Alternatively, it is also possible to be, the second protruding portion 120 (the second spacer) has: Medial extrusion 121, from bearing cylinder 65 is prominent to radially inner side；And outside protruding portion 122, it is prominent from spring cylinder 41 to radial outside and prominent with inside Portion 121 abuts.In addition to this, the combination of each protruding portion can suitably change.

In the above-described embodiment, either one for illustrating in spring cylinder 41 and shell 21 is formed with The structure of one protruding portion, but not only it is defined in the structure.It can also be folded between spring cylinder 41 and shell 21 seperated First spacer.

In the above-described embodiment, illustrate bearing cylinder 65 and spring cylinder 41 in either one be formed with The structure of second protruding portion, but not only it is defined in the structure.It can also be folded with point between bearing cylinder 65 and spring cylinder 41 Second spacer of body.

It, can also be in the component (example for being located at radially opposite sides relative to spacer using seperated spacer Such as be to support cylinder 65 and spring cylinder 41 in the case where the second spacer) at least either member setting limiting unit.

(other variations)

It this concludes the description of the preferred embodiments of the present invention, but the present invention is not limited to these embodiments.It is not taking off In the range of purport of the invention, it is able to carry out the additional of structure, omission, replacement and other changes.The present invention is not aforementioned Illustrate limit, and only limited by the range of technical solution.

For example, in the above-described embodiment, as vibrating body, being illustrated by taking EWP10 etc. as an example, but not only It is defined in the structure.As vibrating body, other than EWP10, the rotary body comprising motor, matching for liquid communication can also be Pipe etc..

In the above-described embodiment, it illustrates that vibration body unit is equipped on the structure of vehicle, but is not only defined in this Structure.

In the above-described embodiment, illustrate that the first protruding portion and the second protruding portion are respectively matched at spaced intervals in the circumferential 4 structures are equipped with, but the quantity of the first protruding portion and the second protruding portion can suitably change.But, the first protruding portion and Two protruding portions are preferably 3 or more multiple.

In the above-described embodiment, illustrate that EWP10, elastic component 31, bracket 32 are all formed as the feelings of cylindrical shape Condition, but not only it is defined in the structure.EWP10, elastic component 31, bracket 32 can also be formed in rib barrel shape etc..In addition, EWP10, elastic component 31, bracket 32 can not also configure on the same axis.

In the above-described embodiment, the structure with the first limiting unit and second limiting unit this both sides is illustrated, but simultaneously It is non-to be only limitted to the structure, it is also possible to the structure with any limiting unit, is also possible to the structure without limiting unit.

It in addition to this, without departing from the spirit and scope of the invention, can be suitably by the structure in above-mentioned embodiment Known constituent element is replaced with, at element alternatively, it is also possible to appropriately combined above-mentioned variation.