CN217374675U - Vibration damping device - Google Patents
Vibration damping device Download PDFInfo
- Publication number
- CN217374675U CN217374675U CN202090000912.8U CN202090000912U CN217374675U CN 217374675 U CN217374675 U CN 217374675U CN 202090000912 U CN202090000912 U CN 202090000912U CN 217374675 U CN217374675 U CN 217374675U
- Authority
- CN
- China
- Prior art keywords
- viscoelastic body
- vibration damping
- support wall
- damping device
- wall portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/12—Parts or details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/087—Units comprising several springs made of plastics or the like material
- F16F3/093—Units comprising several springs made of plastics or the like material the springs being of different materials, e.g. having different types of rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
- F16F2226/044—Snapping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/001—Specific functional characteristics in numerical form or in the form of equations
- F16F2228/005—Material properties, e.g. moduli
- F16F2228/007—Material properties, e.g. moduli of solids, e.g. hardness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/10—Enclosure elements, e.g. for protection
- F16F2230/105—Flexible, e.g. bellows or bladder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
A vibration damping device which is disposed between a first member and a second member and which suppresses vibration of the second member with respect to the first member, the vibration damping device comprising: a fixing portion (22) fixed to one of the first member and the second member; and a vibration damping part (20) which can be in contact with the other of the first member and the second member. The fixing part (22) has: a stand section; and a support wall portion erected from the pedestal portion. The vibration damping part (20) has a viscoelastic body, the viscoelastic body is arranged on the pedestal part, and under the state of protruding from the supporting wall part, the movement of the viscoelastic body along the direction of the arrangement surface of the pedestal part is limited by the supporting wall part.
Description
Technical Field
The utility model relates to a damping device using viscoelastic body.
Background
For example, automobiles such as hatchbacks, station wagons, and vans include a rear door for opening and closing a rear cargo compartment. An edge portion of the rear door abuts a peripheral edge portion of the cargo compartment opening via a rubber stopper or the like, and the rear door closes the cargo compartment opening. However, the rear door and the vehicle body may resonate due to vibration during driving or idling (idling), and an unpleasant sound may be generated. In order to suppress such unpleasant sound, a vibration eliminating member as shown in patent document 1 is proposed.
Patent document 1 discloses a vibration damping member using a viscoelastic body. The vibration eliminating member includes: plate-shaped upper and lower supports; a coil spring sandwiched between the upper support body and the lower support body; and a viscoelastic body disposed inside the coil spring. When the vibration eliminating member receives a load and the coil spring contracts, the upper support body and the lower support body contact with both ends of the viscoelastic body, and the viscoelastic body receives the load.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2010-230156
SUMMERY OF THE UTILITY MODEL
Problem to be solved by the utility model
The vibration damping member disclosed in patent document 1 uses a coil spring, and therefore, the cost increases.
An object of the utility model is to provide a can restrain damping device of cost.
Means for solving the problems
In order to solve the above problem, according to one aspect of the present invention, there is provided a vibration damping device disposed between a first member and a second member, for suppressing vibration of the second member with respect to the first member, the vibration damping device including: a fixing portion fixed to one of the first member and the second member; and a vibration damping portion that can be brought into contact with the other of the first member and the second member. The fixing part has: a stand section; and a support wall portion erected from the pedestal portion. The vibration damping portion has a viscoelastic body, the viscoelastic body is mounted on the pedestal portion, and the movement of the viscoelastic body in the direction of the mounting surface of the pedestal portion is restricted by the support wall portion in a state of protruding from the support wall portion.
Effect of the utility model
According to the utility model discloses, can provide a damping device that can restrain the cost.
Drawings
Fig. 1 is a perspective view of a vibration damping device of an embodiment.
Fig. 2 is an exploded view of the vibration damping device.
Fig. 3 is an exploded sectional view of the vibration damping device.
Fig. 4 is a sectional view of the vibration damping device.
Fig. 5 is a graph showing a relationship between a loss coefficient and a temperature in the viscoelastic body and the elastic portion.
Fig. 6 is a sectional view of a vibration damping device according to a first modification.
Fig. 7 is a perspective view and a sectional view of a vibration damping device according to a second modification.
Fig. 8 is a sectional view of a vibration damping device according to a third modification.
Detailed Description
Fig. 1 is a perspective view of a vibration damping device 10 of an embodiment. The damper device 10 is fixed to an opening/closing body such as a door or a rear door of a vehicle, and abuts against a panel on the vehicle body side in a state where the opening/closing body is closed. The damper device 10 can absorb an impact when the opening/closing body is closed, and suppress resonance of the opening/closing body due to vehicle vibration in a state where the opening/closing body is closed, thereby generating an unpleasant sound. In addition, the damper device 10 can absorb a difference in distance between the opening/closing body and the vehicle body side panel in a state where the opening/closing body is closed. The higher the loss factor is, the more useful vibration damping performance can be exhibited in the vibration damping device 10.
The damper device 10 may be fixed to a fixed body such as a panel on the vehicle body side and may be in contact with the openable and closable body. That is, the damper device 10 can be fixed to one of the opening/closing body and the fixed body and brought into contact with the other of the opening/closing body and the fixed body. The damper device 10 is not limited to the one fixed to the door of the vehicle, and may be provided in the cover and a fixed body having an opening closed by the cover. In any case, the vibration damping device 10 is interposed between the first member and the second member to suppress vibration of the second member with respect to the first member.
The vibration damping device 10 includes: a fixing portion 22 fixed to one of the first member and the second member; and a vibration damping portion 20 that can be brought into contact with the other of the first member and the second member. In the embodiment, the fixing portion 22 is inserted into and fixed to a mounting hole provided in a door of a vehicle, and the vibration damping portion 20 abuts against an opening edge on a vehicle body side when the door is closed.
Fig. 2 is an exploded view of the vibration damping device 10. Fig. 3 is an exploded sectional view of the damper device 10. Fig. 4 is a sectional view of the damper device 10. As shown in fig. 2, the vibration damping portion 20 includes a viscoelastic body 24, an elastic portion 26, and a cover portion 28. The elastic portion 26 has a smaller loss coefficient than the viscoelastic body 24.
The fixing portion 22 includes a base portion 30, a first support wall portion 32, a second support wall portion 34, a shaft portion 36, and an elastic engagement portion 38. The base 30 is formed in a plate shape. The first support wall portion 32 and the second support wall portion 34 are provided upright from the pedestal portion 30, and support the viscoelastic body 24. The first support wall 32 is formed in an annular shape, and the second support wall 34 is formed in a cylindrical or columnar shape. The second support wall 34 is located inside the first support wall 32, is surrounded by the first support wall 32, and is formed higher than the first support wall 32 in the axial direction.
The shaft portion 36 hangs down from the base portion 30, and a pair of elastic locking portions 38 extend from the shaft portion 36 toward the base portion 30. The shaft portion 36 is inserted into a mounting hole formed in the door, and the fixing portion 22 is fixed to the door by locking the elastic locking portion 38 to an edge of the mounting hole. The method of fixing the door is not limited to the shapes of the shaft portion 36 and the elastic locking portion 38, and may be other shapes as long as the door can be fixed. For example, the lower surface of the base portion 30 may be bonded or welded to the door.
The viscoelastic body 24 of the vibration damping portion 20 is formed of a 4-methyl-1-pentene/α -olefin copolymer and a resin composition containing a thermoplastic resin (excluding the copolymer) or rubber, and is formed in a cylindrical shape. By forming the damper device from a material containing a 4-methyl-1-pentene/α -olefin copolymer, a desired hardness can be obtained, and a coil spring can be eliminated from the damper device 10. This viscoelastic body is disclosed in Japanese patent laid-open publication No. 2016-56954. The viscoelastic body 24 may be formed of another viscoelastic body as long as the desired vibration damping performance is obtained. As shown in fig. 3 and 4, the viscoelastic body 24 is supported by the first support wall portion 32 and the second support wall portion 34 in a state of being placed on the pedestal portion 30 and protruding from the first support wall portion 32 and the second support wall portion 34. The movement of the viscoelastic body 24 in the direction of the mounting surface 30a of the base portion 30, that is, the movement in the radial direction is restricted by the first support wall portion 32 and the second support wall portion 34.
Thereby, the viscoelastic body 24 can exhibit vibration damping performance against a load in the axial direction. The first support wall portion 32 and the second support wall portion 34 are simply referred to as support wall portions without distinction. Even when the viscoelastic body 24 receives a load in a direction inclined in the axial direction, the support wall portion stabilizes the posture and exhibits vibration damping performance. Further, the viscoelastic body 24 is formed in a tubular shape, and the viscoelastic body 24 is supported from the inside and the outside of the viscoelastic body 24 by the first support wall portions 32 and the second support wall portions 34, whereby the viscoelastic body 24 can be stably supported.
An annular first receiving surface 40a is formed at the distal end of the viscoelastic body 24, and an annular second receiving surface 40b is formed at the proximal end of the viscoelastic body 24. The first bearing surface 40a and the second bearing surface 40b bear a load input in the axial direction.
The elastic portion 26 is formed in a cylindrical shape, is inserted into the viscoelastic body 24, and abuts against the fixed portion 22. Thus, the viscoelastic body 24 can be disposed outside the elastic portion 26, and the first receiving surface 40a and the second receiving surface 40b of the viscoelastic body 24 can be sufficiently ensured. As long as the receiving area of the viscoelastic body 24 can be sufficiently ensured, the viscoelastic body 24 and the elastic portion 26 may be arranged in reverse, and the viscoelastic body 24 may be arranged inside the elastic portion 26.
That is, the receiving area of the viscoelastic body 24 is formed larger than the receiving area of the elastic portion 26. The receiving area of the viscoelastic body 24 is an average value of the areas of the first receiving surface 40a and the second receiving surface 40b, and the receiving area of the elastic portion 26 is an average value of the areas of the first receiving surface 42a and the second receiving surface 42 b. Preferably, the elastic portion 26 has a shorter axial height than the viscoelastic body 24, and the young's modulus of the elastic portion 26 is equal to or less than the young's modulus of the viscoelastic body 24.
As shown in fig. 4, the elastic portion 26 is provided in parallel with the viscoelastic body 24 between the door and the panel on the vehicle body side. That is, the elastic portion 26 and the viscoelastic body 24 are arranged in parallel in the axial direction, and function as springs that receive a load input in the axial direction in parallel. One end of the elastic portion 26 and the viscoelastic body 24 is in contact with the contact portion 44, and the other end thereof is in contact with the fixed portion 22.
Fig. 5 shows a relationship between the loss coefficient tan δ and the temperature T in the viscoelastic body 24 and the elastic portion 26. Fig. 5 shows a property 60 of the elastic portion 26 as a rubber material and a property 62 of the viscoelastic body 24. As shown in fig. 5, the loss coefficient of the viscoelastic body 24 at 0 ℃ or higher is larger than that of the elastic portion 26. By arranging the viscoelastic body 24 having a large loss coefficient in parallel with the elastic portion 26 in this manner, the vibration damping effect can be ensured even if the vibration damping performance of the viscoelastic body 24 is reduced at low temperatures. In addition, when the elastic portion 26 is at a low temperature of less than 0 ℃, the loss coefficient becomes larger than that of the viscoelastic body 24, and the viscoelastic body 24 can be complemented.
The cover portion 28 is formed in a cup shape, covers the viscoelastic body 24, and suppresses the viscoelastic body 24 from directly abutting and being fixed to the first member or the second member. The cover portion 28 is formed of a rubber material having a lower viscosity than the viscoelastic body 24. The fixing portion 22 has a lower young's modulus than the viscoelastic body 24 and can be firmly fixed to the attachment hole.
The hood 28 has an abutment portion 44, a fitting portion 46, and an umbrella portion 48. The contact portion 44 is in contact with the vehicle body side panel, and is disposed between the viscoelastic body 24 and the elastic portion 26, and the vehicle body side panel. The fitting portion 46 is formed in a groove shape and fitted to the outer peripheral edge of the pedestal portion 30. The umbrella portion 48 elastically contacts the surface of the door in a fixed state, and prevents water, dust, and the like from entering through a gap between the damper device 10 and the attachment hole of the opening/closing body, thereby suppressing the rattling of the damper device 10.
The viscoelastic body 24 is formed such that the static strain ∈ s shown in the following formula (1) falls within a range of 0.7% to 15%.
εs＝P/ES……(1)
P shown in equation (1) is a load input to the viscoelastic body 24 in a state where the door of the vehicle is closed. The load P input to the viscoelastic body 24 is set according to the weight of the door, the pull-in force of the door lock mechanism, and the reaction force of the elastic portion 26. E is the young's modulus of the viscoelastic 24. For example, the young's modulus E of the viscoelastic body 24 is set to 3 to 10MPa (megapascals). S is a receiving area of the viscoelastic body 24 receiving the load P, and is determined by areas of the distal end side and the proximal end side of the viscoelastic body 24. That is, S is an average value of the first receiving surface 40a and the second receiving surface 40 b.
The present inventors have found through experiments that satisfying equation (1) allows the loss coefficient tan δ, which is an index of vibration damping performance, to be set in the range of 0.4 to 1.0, thereby suppressing vibration of the vehicle during traveling. Further, the damper device 10 can be configured without using a coil spring in order to ensure the rigidity of the viscoelastic body 24, and the damper device 10 can be reduced in size and cost.
The viscoelastic body 24 is determined such that the dynamic strain ∈ D represented by the following formula (2) is 3% or less, as the single amplitude D and the axial height H that constitute the dynamic strain ∈ D.
εd＝100(D/H)……(2)
D in the formula (2) is a single amplitude, and H is the axial height of the viscoelastic body 24. By setting the axial height H of the viscoelastic body 24 so as to satisfy the formula (2), a desired vibration damping performance can be achieved.
The outer diameter of the root side of the shaft 36 is formed larger than the inner diameter of the viscoelastic body 24. This ensures the rigidity of the pedestal portion 30. As shown in fig. 4, the fixing portion 22 is not formed with a hole penetrating in the axial direction, and the umbrella portion 48 elastically contacts at the time of fixing, whereby the sealing performance of the damper device 10 can be ensured.
Fig. 6 is a sectional view of a vibration damping device 100 according to a first modification. The damper device 100 according to the first modification differs from the damper device 10 shown in fig. 4 in that the elastic portion 126 and the cover portion 128 are integrally formed. The elastic portion 126 protrudes from the center of the rear surface of the abutting portion 44 of the hood portion 128. By integrally forming elastic portion 126 and cover portion 128 from the same material, the number of parts can be reduced, and manufacturing cost can be reduced. In this case, the elastic portion 126 and the cover portion 128 are formed of a rubber material that is less likely to be fixed to the panel than the viscoelastic body 24.
Fig. 7 is a perspective view and a sectional view of a vibration damping device 200 according to a second modification. Fig. 7 (a) is a perspective view of the damper device 200, and fig. 7 (b) is a sectional view of the damper device 200. The vibration damping device 200 includes: a fixing portion 222 fixed to a mounting hole of a door; and a vibration damping portion 220 formed of a viscoelastic material.
The fixing portion 222 includes a pedestal portion 230, a support wall portion 232, a shaft portion 36, and an elastic locking portion 38. The pedestal portion 230 is formed in a circular plate shape. The support wall 232 is formed in a cylindrical shape so as to stand from the pedestal 230.
Damping portion 220 has pillar portion 50 and cylinder portion 52. The cylindrical portion 52 is formed to surround the column portion 50. The pillar portion 50 is positioned at the center of the vibration damping portion 220, is inserted into the support wall portion 232, and the movement of the pillar portion 50 in the direction of the placement surface of the base portion 230 is restricted by the support wall portion 232. The vibration damping portion 220 is formed of a viscoelastic material and protrudes from the support wall portion 232. Thus, the vibration damping portion 220, which is a viscoelastic body, can exhibit vibration damping performance against a load in the axial direction. Further, even when the vibration damping portion 220 receives a load in a direction inclined in the axial direction, the support wall portion stabilizes the posture and exhibits vibration damping performance.
The vibration damping portion 220 may be coupled by press-fitting the pillar portion 50 into the support wall portion 232, or may be coupled by bonding the pillar portion 50 to the inner circumferential surface of the support wall portion 232. Further, the cylindrical portion 52 may be provided with a fitting portion that is fitted to the outer peripheral edge of the pedestal portion 230, and the vibration damping portion 220 may be coupled to the fixing portion 222.
Fig. 8 is a sectional view of a damper device 300 according to a third modification. The vibration damping device 300 of the third modification differs from the vibration damping device 200 of the second modification in that the vibration damping portion 320 is divided into the viscoelastic body 324 and the cover portion 328. The fixing portion 322 has a base portion 330 and a support wall portion 332 having the same shape as the fixing portion 222 shown in fig. 7.
The cover 328 is formed in a cup shape and covers the viscoelastic body 324. The viscoelastic body 324 has: a column portion 324a inserted into the support wall portion 332; and a tapered portion 324b protruding from the support wall portion 332. The viscoelastic body 324 and the cover portion 328 may be adhesively fixed, and the viscoelastic body 324 may be adhesively fixed to the fixing portion 322. By providing the cover portion 328, the viscoelastic body 324 can be covered, and the viscoelastic body 324 is prevented from being fixed to the member to be contacted.
The present invention is not limited to the above embodiments, and various modifications such as design changes may be made to the embodiments based on knowledge of those skilled in the art, and embodiments modified in this way may be included in the scope of the present invention.
In the embodiment, the viscoelastic body 24 is formed in a cylindrical shape, and the first support wall portion 32 and the second support wall portion 34 are formed in a cylindrical shape, but the embodiment is not limited thereto. For example, the viscoelastic body 24 may be formed in a square tube shape, and the first support wall portion 32 and the second support wall portion 34 may be formed in a square tube shape. Further, the viscoelastic body 24 may be formed on a column having a "U" shaped cross section. In any case, the viscoelastic body 24 is supported by the first and second support wall portions 32 and 34 in a state of protruding from the first and second support wall portions 32 and 34.
Industrial applicability of the invention
The utility model relates to a damping device using viscoelastic body.
Description of reference numerals:
10: a vibration damping device; 20: a vibration damping section; 22: a fixed part; 24: a viscoelastic body; 26: an elastic portion; 28: a cover portion; 30: a stand section; 30 a: a carrying surface; 32: a first support wall portion; 34: a second support wall portion; 36: a shaft portion; 38: an elastic locking part; 40 a: a first bearing surface; 40 b: a second bearing surface; 42 a: a first bearing surface; 42 b: a second bearing surface; 44: an abutting portion; 46: a fitting portion; 48: an umbrella-shaped part.
Claims (8)
1. A vibration damping device that is disposed between a first member and a second member and suppresses vibration of the second member with respect to the first member, the vibration damping device being characterized by comprising:
a fixing portion fixed to one of the first member and the second member; and
a vibration damping portion capable of coming into contact with the other of the first member and the second member,
the fixing portion has:
a stand section; and
a support wall portion erected from the base portion,
the vibration damping part comprises: a viscoelastic body; and an elastic portion provided between the first member and the second member in parallel with the viscoelastic body,
the viscoelastic body is mounted on the pedestal portion, and movement in a direction of a mounting surface of the pedestal portion is restricted by the support wall portion in a state of protruding from the support wall portion,
the viscoelastic body is formed to have a larger receiving area than the elastic portion.
2. The vibration damping device according to claim 1,
the vibration damping part has a cover part covering the viscoelastic body,
the cover portion is formed of a rubber material having a lower viscosity than the viscoelastic body.
3. Damping device according to claim 1 or 2,
the elastic portion is inserted into the viscoelastic body and abuts against the fixing portion.
4. A vibration damping device that is disposed between a first member and a second member and that suppresses vibration of the second member with respect to the first member, the vibration damping device comprising:
a fixing portion fixed to one of the first member and the second member; and
a vibration damping portion capable of coming into contact with the other of the first member and the second member,
the fixing portion has:
a stand section; and
a support wall portion erected from the base portion,
the vibration damping portion has a viscoelastic body,
the viscoelastic body is mounted on the pedestal portion, and movement in a direction of a mounting surface of the pedestal portion is restricted by the support wall portion in a state of protruding from the support wall portion,
one of the first member and the second member is a door of a vehicle,
the viscoelastic body is formed with a receiving area S of the viscoelastic body in which a static strain ε S shown in the following formula (1) falls within a range of 0.7% to 15%,
εs＝P/ES……(1)
wherein P shown in equation (1) is a load input to the viscoelastic body in a state where a door of the vehicle is closed, E is a young' S modulus of the viscoelastic body, and S is a receiving area of the viscoelastic body receiving the load P, and is determined from areas of a tip side and a base end side of the viscoelastic body.
5. A vibration damping device that is disposed between a first member and a second member and suppresses vibration of the second member with respect to the first member, the vibration damping device being characterized by comprising:
a fixing portion fixed to one of the first member and the second member; and
a vibration damping portion capable of coming into contact with the other of the first member and the second member,
the fixing portion has:
a stand section; and
a support wall portion erected from the base portion,
the vibration damping portion has a viscoelastic body,
the viscoelastic body is mounted on the pedestal portion, and movement in a direction of a mounting surface of the pedestal portion is restricted by the support wall portion in a state of protruding from the support wall portion,
the axial height H of the viscoelastic body is determined such that the dynamic strain ε d is 3% or less,
εd＝100(D/H)……(2)
wherein D is a single amplitude and H is an axial height of the viscoelastic body, as represented by the formula (2).
6. Damping device according to claim 4 or 5,
the vibration damping portion has an elastic portion that is provided between the first member and the second member in parallel with the viscoelastic body,
the viscoelastic body has a loss coefficient at 0 ℃ or higher larger than that of the elastic portion.
7. Damping device according to claim 4 or 5,
the elastic portion is inserted into the viscoelastic body and abuts against the fixing portion.
8. The vibration damping device according to claim 6,
the elastic portion is inserted into the viscoelastic body and abuts against the fixing portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019190129 | 2019-10-17 | ||
| JP2019-190129 | 2019-10-17 | ||
| PCT/JP2020/038283 WO2021075370A1 (en) | 2019-10-17 | 2020-10-09 | Damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217374675U true CN217374675U (en) | 2022-09-06 |
Family
ID=75538466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202090000912.8U Active CN217374675U (en) | 2019-10-17 | 2020-10-09 | Vibration damping device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7282471B2 (en) |
| CN (1) | CN217374675U (en) |
| DE (1) | DE112020005010T5 (en) |
| WO (1) | WO2021075370A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117716143A (en) * | 2021-07-28 | 2024-03-15 | 百乐仕株式会社 | Vibration damper |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62127805U (en) * | 1986-02-05 | 1987-08-13 | ||
| JPH08326829A (en) * | 1995-05-31 | 1996-12-10 | Nippon Mektron Ltd | Bump stopper |
| JP2003072389A (en) | 2001-09-04 | 2003-03-12 | Kubota Corp | Engine fixing device |
| JP2008094261A (en) * | 2006-10-12 | 2008-04-24 | Daiwa Kasei Ind Co Ltd | Cushion clip |
| JP5774815B2 (en) | 2009-03-06 | 2015-09-09 | スリーエム イノベイティブ プロパティズ カンパニー | Vibration isolating member and manufacturing method thereof |
| JP5872792B2 (en) * | 2010-09-15 | 2016-03-01 | 三井化学株式会社 | Anti-vibration material and anti-vibration member |
| CN103608606B (en) * | 2011-06-10 | 2017-03-22 | 汉高股份有限及两合公司 | Effective vibration damping across a broad temperature range |
| JP2018135924A (en) * | 2017-02-21 | 2018-08-30 | 住友理工株式会社 | Vibration control device for opening/closing door for vehicle |
-
2020
- 2020-10-09 DE DE112020005010.6T patent/DE112020005010T5/en active Pending
- 2020-10-09 CN CN202090000912.8U patent/CN217374675U/en active Active
- 2020-10-09 JP JP2021552367A patent/JP7282471B2/en active Active
- 2020-10-09 WO PCT/JP2020/038283 patent/WO2021075370A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP7282471B2 (en) | 2023-05-29 |
| WO2021075370A1 (en) | 2021-04-22 |
| DE112020005010T5 (en) | 2022-07-07 |
| JPWO2021075370A1 (en) | 2021-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI261096B (en) | Dustproof cover support structure of shock absorber | |
| JP3772715B2 (en) | Vibration control device | |
| WO2012111573A1 (en) | Vibration isolation device, and bracket for vibration isolation device | |
| CN217374675U (en) | Vibration damping device | |
| US20200096073A1 (en) | Vibration damper | |
| US20230174153A1 (en) | A vibration damper assembly, a method of tuning such an assembly, and a method for manufacturing vibration damper assemblies | |
| US20020171222A1 (en) | Strut mount | |
| ES2294384T3 (en) | WHEEL FOR INTERNAL COMBUSTION MOTOR. | |
| US7017892B2 (en) | Suspension strut with stop buffer | |
| US20070145228A1 (en) | Bracket fixing structure | |
| KR20070042865A (en) | Oil damper | |
| JP2007113622A5 (en) | ||
| US7445401B2 (en) | Connecting element for releasably and vibration damping connection of a first component to a second component | |
| US7066309B2 (en) | Suspension support device and a vehicle including such a device | |
| US20070001358A1 (en) | Tunable top mount | |
| US20060272911A1 (en) | Jounce bumper, rate cup, and strut mount bottom plate | |
| JPH07127683A (en) | Liquid-seal type mount device | |
| JP2009243503A (en) | Strut mount | |
| US7172208B2 (en) | Airbag housing on a motor vehicle steering wheel with a gas generator as vibration-absorbing mass | |
| JPH09280286A (en) | Fitting structure of stabilizer bush | |
| US7731164B2 (en) | Vibration damper device comprising a flange ring capable of coming to a stop against a damper unit | |
| JP2007255530A (en) | Vibration isolating mount | |
| JP2023011952A (en) | Vibration control device | |
| JP2020045931A (en) | Cylinder type vibration control device | |
| US20240301937A1 (en) | Damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |