WO2011074259A1 - ストラットマウント - Google Patents
ストラットマウント Download PDFInfo
- Publication number
- WO2011074259A1 WO2011074259A1 PCT/JP2010/007288 JP2010007288W WO2011074259A1 WO 2011074259 A1 WO2011074259 A1 WO 2011074259A1 JP 2010007288 W JP2010007288 W JP 2010007288W WO 2011074259 A1 WO2011074259 A1 WO 2011074259A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer cylinder
- vehicle body
- side panel
- body side
- strut mount
- Prior art date
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Classifications
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- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
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- 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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/418—Bearings, e.g. ball or roller bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/013—Constructional features of suspension elements, e.g. arms, dampers, springs with embedded inserts for material reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/41—Dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/90—Maintenance
- B60G2206/91—Assembly procedures
Definitions
- this type of strut mount 51 shown in a longitudinal sectional view in FIG. 8 is an outer cylinder 52 having a tapered shape whose diameter is expanded downward from the central axis. And an inner cylinder 53 disposed on the inner peripheral side of the outer cylinder 52, and an elastic member 54 that connects the outer cylinder 52 and the inner cylinder 53 and covers the outer peripheral surface and the end of the outer cylinder 52. Is.
- the strut mount 51 is disposed inside the inner cylinder 53 through an upper end portion 55a of a strut rod 55 which is disposed on the wheel side and forms a part of a shock absorber (not shown).
- 52 is fitted to the inside of an inverted dish-shaped vehicle body side panel 56 provided with a through hole 56a on the bottom surface, and at the same time, the outer contour dimension is fastened and fixed to a stopper fitting 57 larger than the through hole 56a for use.
- it functions as a suspension device that suppresses transmission of vibration between the vehicle body and the wheels.
- such a suspension device can absorb most of the input from the wheel side to the vehicle body side received from the road surface when the vehicle travels by the coil spring 58 and the shock absorber, and can also be absorbed by the coil spring 58 and the shock absorber. Absorbed input portion is absorbed by the strut mount 51, and input from the vehicle body side to the wheel side is absorbed mainly by shear deformation of the elastic member 54 of the strut mount 51, and vibration from the road surface is applied to the vehicle body. Transmission is sufficiently suppressed, thereby improving the ride comfort of the vehicle.
- this conventional strut mount 51 having a tapered outer cylinder 52 fitted inside the inverted dish-shaped vehicle body side panel 56, the processing error of the vehicle body side panel 56, that is, the vehicle body side panel 56 is provided.
- the strut mount 51 is disposed between the vehicle body side panel 56 and the strut rod 55 depending on a processing error such as an inclination angle of the tapered side wall 56b, which may be unavoidable in processing and forming, for example, FIG.
- the elastic member 54 of the strut mount 51 covers the upper end portion of the outer cylinder 53 as shown in an enlarged cross-sectional view of the fitting portion of the strut mount 51 to the vehicle body side panel 56.
- the central axis of the strut mount 51 becomes the central axis of the through hole 5 a of the vehicle body side panel 56.
- the strut mount 51 may be fitted to the inside of the vehicle body side panel 56 in a state of being inclined with respect to the inclination, and the center axis line of the strut mount 51 may be placed on the strut mount 51 when the vehicle is traveling, for example.
- the strut mount 51 connected to the wheel side strut rod 55 is connected to the vehicle body side panel 56 inside the vehicle body side panel 56. To may be displaced relative to each orientation of the force, that these, there may affect the stability and riding comfort at the time of running of the vehicle.
- An object of the present invention is to solve such problems of the prior art, and the object of the present invention is to attach the strut mount to the vehicle body side panel regardless of the processing accuracy of the vehicle body side panel. This prevents the displacement of the fitting posture when fitted to the vehicle and the relative displacement of the strut mount with respect to the vehicle body side panel when the vehicle is running, thereby improving the running stability and riding comfort of the vehicle.
- the object is to provide an improved strut mount.
- the strut mount of the present invention connects the outer cylinder and the inner cylinder, the outer cylinder having a tapered shape whose diameter increases toward the lower side of the central axis, the inner cylinder disposed on the inner peripheral side of the outer cylinder, An inverted plate-like shape comprising an elastic member covering the outer peripheral surface and the end of the outer cylinder, with the upper end of the strut rod extending from the wheel side penetrating into the inner cylinder and having a through hole in the bottom surface
- the outer cylinder is fitted to the inside of the vehicle body side panel for use, and the outer peripheral surface of the outer cylinder is made to be more than the inner peripheral surface of the tapered side wall of the vehicle body side panel having an inverted dish shape.
- the elastic member is tilted greatly with respect to the central axis of the outer cylinder and is fitted to the vehicle body side panel, and the elastic member is disposed on the inside of the vehicle body side panel only at the portion of the elastic member that covers the outer peripheral surface of the outer cylinder It is made to contact with.
- the thickness of the portion of the elastic member covering the outer peripheral surface of the outer cylinder is made thicker in the upper part than the lower part of the central axis of the outer cylinder.
- a curved surface facing radially inward is formed on the inner peripheral surface of the lower end portion of the outer cylinder over the entire circumference, and more preferably, the lower end portion of the outer cylinder is formed on the outer periphery in the radial direction over the entire circumference. Curve toward.
- a bulging portion that bulges outward in the radial direction is formed on the outer peripheral surface of the upper end portion of the outer cylinder over the entire circumference.
- the outer peripheral surface of the outer cylinder is inclined more largely with respect to the central axis of the outer cylinder than the inner peripheral surface of the tapered side wall of the inverted dish-shaped body side panel.
- the strut mount is attached to the outer periphery of the outer cylinder.
- the outer cylinder and the vehicle body side panel are mainly elastic members that cover the lower end portion of the surface and come into great contact with the inside of the vehicle body side panel and due to the effect of the vehicle body weight on the strut mount. Accordingly, the contact portion between the tapered side surface of the elastic member and the inner peripheral surface of the tapered side wall of the vehicle body side panel increases.
- the strut mount can always be properly fitted to the vehicle body side panel on the inner side of the vehicle body side panel without any misalignment, regardless of the processing error of the vehicle body side panel.
- the increased adhesion between the vehicle body side panel and the inner peripheral surface of the vehicle body side panel makes it difficult for the strut mount to be displaced relative to the vehicle body side panel during vehicle travel. Can be improved.
- the outer peripheral surface of the outer cylinder is inclined more largely with respect to the central axis of the outer cylinder than the inner peripheral surface of the tapered side wall of the inverted dish-shaped vehicle body side panel.
- the outer peripheral surface on the lower end side of the cylinder is closer to the inside of the vehicle body side panel than the outer peripheral surface on the upper end side thereof, and a force that pushes the strut mount into the interior of the vehicle body side panel acts.
- the lower end portion of the outer cylinder made of a rigid material resists the pushing force through the elastic member portion covering the outer peripheral surface of the lower end portion.
- the elastic member of the strut mount is deformed due to various forces acting on the strut mount, only the elastic member portion covering the outer peripheral surface of the outer cylinder of the strut mount is used. Panel It can be maintained in contact with inward.
- the elastic member part of the lower end part of the outer cylinder is also in contact with the inner peripheral surface of the vehicle body side panel, so that the elastic member and the inner peripheral surface of the tapered side wall of the vehicle body side panel are in contact with each other. Since the area is further increased, the fitting posture of the strut mount to the vehicle body side panel is further ensured.
- the outer peripheral surface of the lower end part of the outer cylinder is recessed toward the inner side in the radial direction over the entire circumference, especially when the lower end part of the outer cylinder is curved toward the outer side in the radial direction over the entire circumference.
- the outer cylinder is caused by the contact between the elastic member, which is deformed to escape from the lower end of the outer cylinder to the outer peripheral surface of the outer cylinder, and the lower end of the outer cylinder when various inputs are applied to the strut mount.
- the occurrence of cracks in the elastic member at the lower end can be effectively prevented, thereby improving the durability of the strut mount.
- the strut mount is fitted to the vehicle body side panel,
- the surface pressure generated between the inner peripheral surface of the tapered side wall of the vehicle body side panel and the elastic member portion covering the bulging portion, that is, the frictional force is larger than that between other outer cylinder covering portions. Therefore, the relative displacement of the strut mount with respect to the vehicle body side panel, which occurs when the vehicle is traveling, is further suppressed, and the traveling stability and riding comfort of the vehicle can be further improved.
- FIG. 1 is a longitudinal sectional view including a central axis showing a suspension device to which a strut mount of the present invention is attached.
- FIG. 2 is an enlarged longitudinal sectional view of a main part of a fitting portion between a strut mount and a vehicle body side panel shown in FIG. It is a principal part expanded sectional view which shows the inclination angle of the outer surface of the elastic member part which coat
- reference numeral 1 denotes a strut mount disposed between the vehicle body side member and the wheel side member.
- the strut mount 1 includes an outer cylinder 2 having a tapered shape that expands toward the lower side of the central axis C, an inner cylinder 3 disposed on the inner peripheral side of the outer cylinder 2, an inner peripheral surface of the outer cylinder 2, and an inner The outer peripheral surface of the cylinder 3 is connected to the outer peripheral surface of the outer cylinder 2 and an elastic member 4 covering the end portion is provided.
- the outer cylinder 2 is fitted inside the vehicle body side panel 10 having an inverted dish shape having a through hole 11 on the bottom surface,
- the strut mount 1 is disposed between the vehicle body side panel 10 and a shock absorber surrounded by a coil spring 22 through an upper end portion 21a of a strut rod 21 that forms a part of a shock absorber on a wheel side (not shown). Set up.
- the strut mount 1 disposed around the upper end portion 21a of the wheel side strut rod 21 has the elastic member 4 in contact with the inner peripheral surface of the vehicle body side panel 10 via the outer cylinder 2. It elastically supports the weight of the vehicle body from the side panel 10 and functions to absorb the portion of the input received by the wheels from the road surface that could not be absorbed by the shock absorber and the coil spring 22.
- both the outer cylinder 2 and the inner cylinder 3 are formed of a rigid material such as a metal material, and in the figure, both the outer cylinder 2 and the inner cylinder 3 are common to both the cylinders 2 and 3. It forms a cylindrical shape whose diameter increases from the upper side to the lower side of the central axis C.
- the outer cylinder 2 is a tapered cylinder whose diameter increases linearly from the upper side to the lower side of the central axis C, whereas it is thicker than the outer cylinder 2.
- the inner cylinder 3 is a deformed cylinder formed by forming a shoulder portion 3a bulging toward the outer peripheral side over the entire circumference thereof in a substantially central region in the central axis C direction.
- the elastic member 4 that connects the inner peripheral surface of the outer cylinder 2 and the outer peripheral surface of the inner cylinder 3 covers the outer peripheral surface and both ends of the outer cylinder 2 as described above, and the strut mount 1
- This outer cylinder covering portion of the elastic member 4 is brought into contact with the inner peripheral side of the vehicle body side panel 10, and in the illustrated strut mount 1, the inner peripheral surface and both ends of the inner cylinder 3 are also covered with the elastic member 4.
- the strut mount 1 is brought into contact with a later-described thrust bearing 23 and a bracket 24 disposed inside the shoulder portion 3a of the inner cylinder 3 at the inner cylinder covering portion of the elastic member 4.
- both cylinders 2 and 3 are formed so that the inner diameter of the upper end portion of the outer cylinder 2 is smaller than the outer diameter of the lower end portion of the inner cylinder 3. According to this, even if the elastic member 4 of the strut mount 1 that supports the vehicle body side panel 10 breaks down during the traveling of the vehicle, the inner cylinder 3 and the strut rod 21 of the shock absorber on the wheel side together with the outer cylinder 2 It is possible to prevent the vehicle from being unable to run due to the upward penetration.
- the outer peripheral surface of the outer cylinder 2 is formed on the tapered side wall of the vehicle body side panel 10 as shown in FIG. 2 in an enlarged manner as the contact portion between the strut mount 1 and the vehicle body side panel 10. 12 is inclined more largely with respect to the central axis C of the outer cylinder 2 than the inner peripheral surface. That is, the inclination angle ⁇ of the outer cylinder 2 from the vertical direction in the figure is preferably made larger by about 1 to 5 ° than the design value ⁇ of the same inclination angle of the tapered side wall 12 of the vehicle body side panel 10. Further, according to the present invention, the elastic member 4 is brought into contact with the inside of the vehicle body side panel 10 only in the portion 4 a that covers the outer peripheral surface of the outer cylinder 2 in the fitting posture to the vehicle body side panel 10.
- the elastic member portion 4b covering the upper end portion of the outer cylinder 2 in the fitting posture of the strut mount 1 to the vehicle body side panel 10 is provided at the periphery of the through hole 11 of the vehicle body side panel 10.
- the elastic member portion 4a that can be easily deformed to the lower side or the upper side of the outer cylinder 2 does not contact the inner surface of the flat annular portion 13 that forms the contact with the inner peripheral surface of the tapered side wall 12 of the vehicle body side panel 10.
- the weight of the vehicle body is supported only by the elastic member portion 4a.
- the elastic member portion 4a sandwiched between the outer cylinder 2 and the vehicle body side panel 10 undergoes escaping deformation to the lower side or the upper side of the outer cylinder 2, and the elastic member portion 4a Since the contact area on the lower end side of the outer cylinder 2 increases, the fitting posture of the strut mount 1 to the vehicle body side panel 10 can be always appropriate and reliable.
- the outer cylinder 2 is made of a rigid material. Since the cylinder 2 is the lower end side portion thereof and resists the force in the direction in which the strut mount 1 is pushed into the vehicle body side panel 10, the elastic member portion 4b covering the upper end portion of the outer cylinder 2 Contact to the inner surface of the flat annular portion 13 of the vehicle body side panel 10 is prevented.
- the distance L between the elastic member portion 4b covering the upper end portion of the outer cylinder 2 and the inner surface of the flat annular portion 13 of the vehicle body side panel 10 is 0. It is preferably 5 mm or more. Since there is a gap of 0.5 mm or more between these members, the elastic member 4 is deformed due to various forces acting on the strut mount 1 when the vehicle travels, and the upper end of the outer cylinder 2 is still present.
- the elastic member portion 4b that covers the portion and the inner surface of the flat annular portion 13 of the vehicle body side panel 10 are not in contact with each other, and only the elastic member portion 4a that covers the outer peripheral surface of the outer cylinder 2 is provided inside the vehicle body side panel 10. The peripheral surface can be contacted.
- the object of comparison of the inclination angle ⁇ of the outer cylinder 2 is set to the design value ⁇ of the inclination angle of the tapered side wall 12 of the vehicle body side panel 10 because the strut mount 1 of the present invention applies it to the vehicle body side panel 10. This is because, when fitted, the shift of the fitting posture between the strut mount 1 and the vehicle body side panel 10 due to a processing error of the vehicle body side panel 10 is prevented.
- the inclination angle ⁇ from the central axis of the outer cylinder 2 in the region in contact with the outer cylinder 2 should be substantially equal to the design value ⁇ of the same inclination angle of the tapered side wall 12 of the vehicle body side panel 10 indicated by a broken line on the upper side of the figure.
- the strut mount 1 is fitted to the vehicle body side panel 10.
- the elastic member portion 4b is not brought into contact with the flat annular portion 13 when being used, the elastic member portion 4a covering the outer peripheral surface of the outer cylinder 2 on which a large part of the vehicle body weight acts is tapered.
- the elastic member portion 4b around the upper end of the outer cylinder dragged by the above-described deformation of the elastic member portion 4a is under the action of a compressive force.
- the elastic member portion 4b is deformed to move from the inner peripheral side to the outer peripheral side of the upper end portion of the outer cylinder 2, so that the elastic member portion 4b becomes the outer cylinder. There is a risk of peeling from the upper end of 2.
- the strut mount 1 is fitted to the vehicle body side panel 10. Since the large body weight acts on the lower side of the elastic member portion 4a covering the outer peripheral surface of the outer cylinder 2 in the aligned posture, the durability of the elastic member portion around the lower end portion of the outer cylinder is lowered. In addition to the reduction in the contact area between the tapered outer surface of the elastic member 4 and the inner peripheral surface of the tapered side wall of the vehicle body side panel 10, the stability and riding comfort of the vehicle according to the present invention can be reduced. There is also a concern that the effect of improvement cannot be sufficiently obtained.
- the thickness of the outer cylinder covering portion 4a of the elastic member 4 is constant from the upper side to the lower side of the central axis C of the outer cylinder 2, but the elastic member portion 4a From the viewpoint of further increasing the degree of adhesion with the inside of the vehicle body side panel 10, as shown in FIGS. 3 and 4, the thickness may be increased above the lower side of the central axis of the outer cylinder. preferable.
- the thickness of the outer cylinder covering portion 4a of the elastic member 4 is 0.5 mm or more even at the thinnest portion.
- the lower end portion of the outer cylinder 2 is curved outward in the radial direction over the entire circumference, or the outer periphery of the upper end portion of the outer cylinder 2 as shown in FIG. 6.
- a bulging portion 2a that bulges outward in the radial direction is formed on the entire surface.
- each of the upper end portion and the lower end portion of the annular body 30 formed in the shape of a truncated cone is bent inward and outward in the radial direction as indicated by white arrows in the figure, and then the bent portions are formed. Both can be performed by press-cutting in a direction perpendicular to the side surface of the bent portion as indicated by an arrow in the figure.
- the bulging part 2a and the curved part 2b can be formed in each of an upper end part and a lower end part under the high cutting quality of each end surface of the upper end part of the outer cylinder 2, and a lower end part.
- each of the elastic member 4 and the outer tube 2 which are deformed to escape around the outer peripheral side of the outer tube 2 at the upper end and the lower end of the outer tube 2 covered with the elastic member 4. Generation of cracks in the elastic member due to contact with the end portion, particularly the cut end surface can be more effectively prevented.
- the lower half region A of the outer peripheral surface of the outer cylinder 2 shown in FIG. 7 can be a region in contact with the vehicle body side panel 10 via the elastic member 4 covering the surface.
- covers the outer peripheral surface of the outer cylinder 2 is attached to the strut mount 1 in the strut mount 1. Further, it is possible to provide one or a plurality of rubber protrusions protruding outward in the radial direction.
- a ring-shaped thrust bearing 23 having a cylindrical portion 23a projecting downward is fitted inside the shoulder portion 3a of the inner cylinder 3, A cylindrical portion 23 a is surrounded on the lower surface of the thrust bearing 23, and a bracket 24 is attached under the pressure of the coil spring 22, and the distal end portion of the strut rod 21 is inserted into the cylindrical portion 23 a of the thrust bearing 23.
- the bracket 24 has a cylindrical portion 24a with an inverted U-shape in the cross section shown in the figure, with a hole surrounding the cylindrical portion 23a of the thrust bearing 23 formed on the upper surface, and a peripheral edge on the lower end side of the cylindrical portion 24a.
- the flange portion 24b is substantially L-shaped in the illustrated cross section, and is formed to be continuous with the peripheral edge on the outer peripheral side of the flange portion 24b, and is formed of a flat plate annular portion 24c that protrudes from the flange portion 24b. .
- a ring-shaped spring receiving plate 25 made of an elastic material is provided so as to cover the outer peripheral surface of the raised side wall of the bracket 24 from the L-shaped flange 24b and the lower surface of the flat plate annular portion 24c. Then, the pressing force of the coil spring 22 is supported by the bracket 24 by seating the coil spring 22 on the spring receiving plate 25.
- the male screw portion 21 b formed on the upper end portion 21 a of the strut rod 21 is passed through the thrust bearing 23, and the male screw portion 21 b is coupled to the thrust bearing 23 by tightening with the lower female screw member 26. To do.
- the strut mount 1 is assembled in a state of being pressed against the inside of the vehicle body side panel 10 without providing any special connection fixing means.
- a dish-shaped stopper fitting 27 having a peripheral wall having an outer diameter somewhat smaller than the diameter of the through hole 11 is disposed in the through hole 11 formed in the bottom surface of the vehicle body side panel 10. To do. Then, the upper end portion of the male screw portion 21b of the strut rod 21 protruding upward from the lower female screw member 26 is inserted into the hole formed in the bottom wall of the stopper fitting 27, and the upper female screw member 21b is inserted into the male screw portion 21b. The stopper fitting 27 is fastened and fixed to the strut rod 21 between the upper and lower female screw members by screwing 28 together.
- This stopper-shaped stopper fitting 27 having a dish-like shape has a flange 27 a formed continuously from the upper end of the stopper fitting 27 when a downward force on the central axis C is applied to the strut rod 21.
- the strut rod 21 is brought into contact with the portion 13 to prevent the strut rod 21 from being pulled out from the strut mount 1.
- a flange 27 a serving as a contact position of the stopper metal fitting 27 on the vehicle body side panel 10 is provided. Covering with a protective rubber 29 prevents these members from being damaged.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
図中1は、車体側部材と車輪側部材との間に配設したストラットマウントを示す。
このようなストラットマウント1の適用に当っては、外筒2を、底面に貫通孔11を設けた倒立皿状形状の車体側パネル10の内側に嵌め合わす一方で、内筒3の内部に、図示しない車輪側のショックアブソーバの一部をなすストラットロッド21の上端部21aを貫通させて、ストラットマウント1を、車体側パネル10と、周囲をコイルスプリング22で取り囲んだショックアブソーバとの間に配設する。
但し、図示のこの実施形態では、外筒2は、中心軸線Cの上方側から下方側に向けて直径が直線状に増加するテーパ状の円筒としたのに対し、外筒2よりも肉厚の内筒3は、中心軸線C方向の略中央域に、それの全周にわたって外周側に向けて膨出する肩部3aを形成してなる異形の円筒としている。
さらに、この発明では、車体側パネル10への嵌合姿勢で、弾性部材4を、それの、外筒2の外周面を被覆する部分4aでのみ、車体側パネル10の内側に接触させる。
そして、車体重量の作用により、外筒2と車体側パネル10との間で挟まれる弾性部材部分4aに、外筒2の下方側や上方側への逃げ変形が生じて、弾性部材部分4aの、外筒2の下端側での接触面積が増大することになるので、ストラットマウント1の、車体側パネル10への嵌合姿勢を常に、適正かつ確実なものとすることができる。
この一方で、弾性部材4の外表面の傾斜角度γを、車体側パネル10の内周面の傾斜角度の設計値βよりも大きくした場合は、ストラットマウント1の、車体側パネル10への嵌合姿勢で、外筒2の外周面を被覆する弾性部材部分4aの下方側の箇所に、大きな車体重量が作用することになるので、外筒下端部の周囲の弾性部材部分の耐久性が低下するおそれがある他、弾性部材4のテーパ状外表面と、車体側パネル10のテーパ側壁の内周面との接触領域の減少によって、この発明の、車両の走行時の安定性および乗り心地性の向上との効果を十分に得ることができない懸念もある。
また好ましくは、弾性部材4のこの外筒被覆部分4aの厚みを、最も薄い部分でも0.5mm以上とする。車体側パネル10の加工精度の誤差の有無によらず、弾性部材4のこの外筒被覆部分4aの変形によって、ストラットマウント1の、車体側パネル10への適正な嵌合姿勢を実現するためである。
なお、図7に示す、外筒2の外周面の、下方側の半部領域Aは、その表面を被覆する弾性部材4を介して、車体側パネル10に接触する領域とすることができる。
そして、図に示すところでは、ブラケット24の、L型フランジ24bからの***側壁の外周面および、平板環状部24cの下面を覆うように、弾性材料からなるリング状のばね受け板25を配設して、このばね受け板25に、コイルスプリング22を着座させることで、コイルスプリング22の押圧力をブラケット24で支持する。
そして、ストッパ金具27の底壁に形成した穴に、下側雌ねじ部材26から上方に突出した、ストラットロッド21の雄ねじ部21bの上端部分を挿入し、そして、この雄ねじ部21bに、上側雌ねじ部材28を螺合させることで、ストッパ金具27を、上下の雌ねじ部材間でストラットロッド21に締付け固定する。
2 外筒
2a 膨出部
2b 湾曲部
3 内筒
3a 肩部
4 弾性部材
4a 外筒の外周面を被覆する部分
4b 外筒の上端部を被覆する部分
10 車体側パネル
11 貫通孔
12 テーパ側壁
13 平坦環状部
21 ストラットロッド
21a 上端部
21b 雄ねじ部
22 コイルスプリング
23 スラストベアリング
23a 筒部
24 ブラケット
24a 円筒部
24b フランジ部
24c 平板環状部
25 ばね受け板
26 下側雌ねじ部
27 ストッパ金具
27a フランジ
28 上側雌ねじ部
29 保護ゴム
30 環状体
Claims (5)
- 中心軸線の下方に向けて拡径するテーパ状をなす外筒と、外筒の内周側に配置した内筒と、該外筒と内筒とを連結するとともに、外筒の外周面および端部を被覆する弾性部材とを具えてなり、
車輪側から延びるストラットロッドの上端部を、前記内筒の内部に貫通させ、底面に貫通孔を設けた倒立皿状形状の車体側パネルの内側に、前記外筒を嵌め合わせて使用に供されるストラットマウントにおいて、
外筒の外周面を、倒立皿状形状の車体側パネルの、テーパ側壁の内周面よりも、外筒の中心軸線に対して大きく傾斜させて、
車体側パネルへの嵌合姿勢で、前記弾性部材を、弾性部材の、外筒の外周面を被覆する部分でのみ、車体側パネルの内側に接触させてなるストラットマウント。 - 弾性部材の、外筒の外周面を被覆する部分の厚みを、外筒の中心軸線の下方側部分よりも上方側部分で厚くしてなる請求項1に記載のストラットマウント。
- 外筒の下端部の内周面に、半径方向の内側に向く湾曲面を、全周にわたって形成してなる請求項1または2に記載のストラットマウント。
- 外筒の下端部を、全周にわたって、半径方向の外側に向けて湾曲させてなる請求項3に記載のストラットマウント。
- 外筒の上端部の外周面に、全周にわたって、半径方向の外側に向けて膨出する膨出部を形成してなる請求項1~4のいずれかに記載のストラットマウント。
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JP2011545984A JP5649587B2 (ja) | 2009-12-16 | 2010-12-15 | ストラットマウント |
US13/516,632 US8888081B2 (en) | 2009-12-16 | 2010-12-15 | Strut mount |
CN201080062192.9A CN102713338B (zh) | 2009-12-16 | 2010-12-15 | 悬架支座 |
EP10837290.5A EP2514992B1 (en) | 2009-12-16 | 2010-12-15 | Strut mount |
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JP2009285368 | 2009-12-16 | ||
JP2009-285368 | 2009-12-16 |
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EP (1) | EP2514992B1 (ja) |
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WO2017075582A1 (en) | 2015-10-31 | 2017-05-04 | Firestone Industrial Products Company, Llc | End mount assemblies as well as gas spring and damper assemblies including same |
CN107009836B (zh) | 2015-12-08 | 2021-11-09 | 斯凯孚公司 | 支柱安装轴承单元 |
CN105402294A (zh) * | 2015-12-16 | 2016-03-16 | 安徽鼎封橡胶减震技术有限公司 | 一种外连接套 |
CN107310341B (zh) * | 2016-04-27 | 2020-08-28 | 上海汽车集团股份有限公司 | 悬架支撑结构、悬架及汽车 |
DE102019200695A1 (de) * | 2019-01-21 | 2020-07-23 | Aktiebolaget Skf | Aufhängungsaxiallagervorrichtung und ein mit einer solchen Vorrichtung ausgerüstetes Federbein |
US11623490B2 (en) * | 2020-06-03 | 2023-04-11 | Nissan North America, Inc. | Vibration attenuation assembly |
FR3139294A1 (fr) * | 2022-09-06 | 2024-03-08 | Ntn-Snr Roulements | Butée de suspension ET JAMBE DE SUSPENSION |
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- 2010-12-15 CN CN201080062192.9A patent/CN102713338B/zh active Active
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- 2010-12-15 EP EP10837290.5A patent/EP2514992B1/en active Active
- 2010-12-15 JP JP2011545984A patent/JP5649587B2/ja active Active
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JP5649587B2 (ja) | 2015-01-07 |
US8888081B2 (en) | 2014-11-18 |
CN102713338B (zh) | 2015-04-29 |
CN102713338A (zh) | 2012-10-03 |
JPWO2011074259A1 (ja) | 2013-04-25 |
EP2514992B1 (en) | 2017-04-05 |
US20120280441A1 (en) | 2012-11-08 |
EP2514992A4 (en) | 2016-03-23 |
EP2514992A1 (en) | 2012-10-24 |
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