Suspension for vehicles

Abstract

The present invention relates to a suspension for a vehicle, which is used to support a powertrain in the vehicle. The suspension may include: a stopper assembly, which is combined on the inner surface of a housing to be arranged in an annular shape along the vicinity of the outer side of an isolator combined with the housing, wherein the stopper assembly may include: an outer ring, which is combined on the inner surface of the housing; and a plurality of stopper members, which are fixed on the inner surface of the outer ring to be arranged along the vicinity of the outer side of the isolator, and each of the plurality of stopper members is spaced apart from each other to contact an inner isolator in the isolator.

Description

Technical Field

[0001] The present invention relates to a suspension for a vehicle. More particularly, the present invention relates to a suspension for a vehicle in which a stopper is adjusted and optimized more easily and in various patterns without modifying or newly manufacturing a mold for forming a spacer. Background Art

[0002] Recently, in the vehicle industry, due to the need to improve fuel efficiency in the current era of environmental regulation and high oil prices, the focus of vehicle development has been on high output and weight reduction of vehicle engines.

[0003] However, as vehicle bodies become lighter due to this trend, noise and vibration of the engine increase, so even slight vibrations can generate loud noise and vibration in the vehicle.

[0004] Furthermore, as the technology applied to vehicles evolves and consumer demand for low noise and low vibration increases, efforts are continually being made to maximize ride comfort by analyzing the noise, vibration and shock of vehicles.

[0005] During vehicle running, engine vibration of a specific frequency occurring within a specific RPM range is transmitted to the interior of the vehicle through the vehicle body, and in the present case, the engine vibration has a significant influence on the interior of the vehicle.

[0006] In terms of the structure of the engine, vibrations continuously occur in the engine due to periodic changes in the center position of the piston and the connecting rod as they move up and down, the inertial force caused by the reciprocating motion of the piston working in the direction of the cylinder axis, the inertial force caused by the left and right shaking of the connecting rod toward the crankshaft, and the periodic changes in the rotational force applied to the crankshaft.

[0007] Therefore, the engine and the vehicle body of the vehicle include an engine mount disposed between the engine and the vehicle body, the engine mount supporting the engine and reducing noise and vibration transmitted from the engine.

[0008] The engine mount supports the powertrain and isolates the vehicle body from the vibration forces transmitted by the engine to reduce noise and vibration, thereby improving ride comfort.

[0009] Engine mounts are mainly divided into rubber engine mounts, air vibration damping engine mounts, and hydraulic engine mounts.

[0010] In the beginning, mainly rubber engine mounts, ie simple rubber mounts, were used, but hydraulic engine mounts have been developed and used to improve the vibration damping characteristics.

[0011] A rubber engine mount using a rubber material is very susceptible to damage by low-frequency vibration (large displacement vibration), and cannot achieve sufficient clamping performance for high-frequency vibration (low-amplitude vibration) and low-frequency vibration (large displacement vibration).

[0012] Therefore, hydraulic engine mounts are widely used because they can absorb and reduce a wide range of vibrations including high frequency vibrations (low amplitude vibrations) and low frequency vibrations (large displacement vibrations) input to the engine mount according to engine operation.

[0013] A hydraulic engine mount, also known as a "fluid mount" or "hydro mount," has a structure in which a damping force occurs when the fluid sealed below the isolation member moves through the flow path between the upper fluid chamber and the lower fluid chamber; and high-frequency vibrations (small-displacement vibrations) and low-frequency vibrations (large-displacement vibrations) can be reduced depending on the situation.

[0014] Figure 1 is a cross-sectional view exemplarily showing a conventional suspension for a vehicle, Figure 2A and Figure 2B is a perspective view exemplarily showing a conventional spacer integrally formed with a stopper in front / rear and left / right directions.

[0015] As an example of a component of a vehicle's powertrain, the suspension 10 shown may be a hydraulic engine suspension that supports an engine, and may include: a central bolt 11 engaged with the engine, an internal core 12 combined with the central bolt 11, and an isolation member 13 of a rubber material, wherein the central bolt 11 is engaged with the engine, the internal core 12 is combined with the central bolt 11, and the isolation member 13 of the rubber material is formed to be integrally combined with the internal core 12.

[0016] In this configuration, the spacer 13 fixes and supports the inner core 12 , and defines an upper fluid chamber C1 together with an orifice assembly 14 provided at a lower side of the spacer.

[0017] The tube 13a is combined with the lower part of the isolation member 13, and after manufacturing the inner core 12 provided with the central bolt 11, the inner core 12 and the tube 13a are installed in the mold, and the isolation member 13 of the rubber material integrally combined with the inner core 12 and the tube 13a can be formed by the vulcanization process in the mold.

[0018] The orifice assembly 14 may include an orifice plate 15 , and may further include a diaphragm 16 .

[0019] The orifice plate 15 is disposed transversely to divide the suspension internal fluid chamber into an upper fluid chamber C1 and a lower fluid chamber C2 at the lower side of the partition 13 of the suspension 10 .

[0020] The orifice plate 15 may include an upper plate 15 a and a lower plate 15 b .

[0021] In addition, the orifice plate 15 has an orifice 15 c that forms a circular bypass flow path (also referred to as an inertia track) to induce fluid movement between the upper fluid chamber C1 and the lower fluid chamber C2 .

[0022] The diaphragm 17 is disposed at the lower side of the orifice plate 15 , and the orifice plate 15 and the diaphragm 17 define a lower fluid chamber C2 .

[0023] The orifice plate 15 may include an orifice that communicates the orifice 15c with the upper fluid chamber C1 , and an orifice that communicates the orifice 15c with the lower fluid chamber C2 .

[0024] Therefore, the upper fluid chamber C1 , the orifice 15 c , and the lower fluid chamber C2 are configured to communicate with each other so that the fluid moves therebetween through the orifices of the orifice plate 15 .

[0025] At the same time, if Figure 2A and Figure 2B As shown, the spacer 13 with three-directional characteristics of the suspension 10 for a vehicle is constructed to be integrally provided with stoppers 13b along the front / rear and left / right directions, and the shape of the stoppers 13b needs to be differently adjusted for the secondary characteristics in the spacer 13 according to the required characteristics of the suspension.

[0026] Figure 2A and Figure 2B Two types of spacers 13 integrally combined with a stopper are shown, each spacer having a stopper 13b of a different shape, and the left spacer and the right spacer are spacers integral with the stopper.

[0027] like Figure 2A and Figure 2B As shown, the shape of the stopper 13b is adjusted to be optimized to maintain the required suspension characteristics, and the shape of the stopper 13b may be variously modified when necessary.

[0028] However, since the stopper 13b is integrally provided with the spacer 13, whenever the shape of the stopper is adjusted, the mold for forming the spacer needs to be modified, and therefore, the degree of freedom of adjustment is reduced by modifying the stopper, which is subject to many restrictions.

[0029] In modifying the spacer mold, not many changes can be made to the different characteristics and not many modifications can be made, so optimization of the stopper is usually not possible.

[0030] Recently, the trend in vehicles is to focus on drivability. In the past, much effort has been put into minimizing vibrations during vehicle idling to facilitate a quiet car, and more recently, when a power engine is installed on a vehicle, much effort has been put into minimizing vibration shocks and jerks during vehicle start-up to achieve a smooth driving feel.

[0031] In order to improve the driving performance, it is necessary to design the powertrain (ie, the engine and the transmission) which contributes most to the vehicle vibration during the starting and stopping of the vehicle to be disposed integrally with the vehicle body.

[0032] Although much attention has been paid to adjusting the engine's torque logic so far, fuel efficiency deteriorates when the logic is adjusted to reduce vibration shock and jerk. Therefore, much research is currently being conducted on the characteristics of the engine mount in the front-rear direction, rather than on the logic.

[0033] However, since many power trains are installed on one vehicle, the shape of the stopper needs to be different for each power train because the inertia specification and the rotation axis are different for each power train.

[0034] Therefore, when the power train has different stoppers, as the number of required specifications of the stoppers increases, the number of spacer molds also increases, which increases the cost.

[0035] Furthermore, since the shape of the stopper needs to be optimized when modifying the spacer mold, the development period and cost are increased.

[0036] Furthermore, the stopper cannot be applied to a conventional inverted suspension.

[0037] Figure 3 It is a cross-sectional view exemplarily showing a portion of the construction of a shell 18 and an isolation member 13 in a conventional inverted suspension, and for the inverted suspension, the suspension is invertedly arranged, wherein the rubber system including the isolation member 13 is located on the lower side of the suspension, and the fluid system including the orifice assembly and the diaphragm is located on the upper side of the support.

[0038] In the inverted suspension, the spacer 13 is vulcanized to form an integral part with the shell 18, and when the spacer 13 is formed to form an integral part with the shell 18, since the structure of the spacer mold is removed, it is impossible to form a stopper in the front-rear direction so as to be integral with the spacer.

[0039] The information contained in this Background of the Invention section is only intended to enhance understanding of the general background of the invention and should not be taken as an acknowledgment or any form of suggestion that this information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0040] Various aspects of the present invention are directed to providing a suspension for a vehicle in which the shape of a stopper is more easily adjusted and optimized in various ways without modifying or newly manufacturing a mold for forming a spacer.

[0041] The present invention also aims to propose an inverted suspension to which a stopper is applied. To achieve the above-mentioned object, according to an exemplary embodiment of the present invention, a suspension for supporting a powertrain in a vehicle is provided, the suspension comprising: a stopper assembly coupled to an inner surface of a housing to be arranged in an annular shape along the vicinity of the outer side of an isolator coupled to the housing, wherein the stopper assembly may include: an outer ring in an annular shape coupled to the inner surface of the housing; and stopper members fixed to an inner surface of the outer ring, arranged along the vicinity of the outer side of the isolator, each of the stopper members being spaced apart from each other to contact an inner isolator in the isolator.

[0042] Therefore, the suspension for a vehicle according to an exemplary embodiment of the present invention has a structure in which stoppers of front / rear and left / right directions are independently manufactured and assembled, thereby easily and freely adjusting and optimizing the shape of the stoppers without modifying a spacer mold.

[0043] Furthermore, in the suspension for a vehicle according to an exemplary embodiment of the present invention, the adjustment freedom of the stopper is increased, and other various problems of the conventional isolating member integrally combined with the stopper, such as increased cost, increased development cycle, and increased expenses due to mold modification and increased number of molds, are also eliminated.

[0044] In other words, in the suspension for a vehicle according to the exemplary embodiment of the present invention, the independently manufactured spacer and the stopper are combined with each other, thereby achieving optimization to improve the optimization rate and performance of the suspension and reduce the period and cost required for development.

[0045] In addition, according to the configuration of the present invention, the inverted suspension to which the stopper is applied is easy to manufacture.

[0046] The methods and apparatus of the present invention have other features and advantages that will be apparent from, or will be described in detail in, the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a cross-sectional view exemplarily showing a conventional suspension for a vehicle;

[0048] Figure 2Aand Figure 2B is a perspective view exemplarily showing a conventional spacer integrally combined with a stopper;

[0049] Figure 3 is a cross-sectional view exemplarily showing a part of the structure of a housing and a spacer in a conventional inverted suspension;

[0050] Figure 4 is a cross-sectional view schematically illustrating a suspension according to an exemplary embodiment of the present invention;

[0051] Figure 5 is a perspective view schematically illustrating a suspended stopper assembly according to an exemplary embodiment of the present invention;

[0052] Figure 6 is a top view schematically illustrating a suspended stopper assembly according to an exemplary embodiment of the present invention;

[0053] Figure 7 is a perspective view exemplarily illustrating a process of assembling a stopper assembly and a suspended housing according to an exemplary embodiment of the present invention;

[0054] Figure 8 is a top view of a state of a stopper assembly assembled with a suspended housing according to an exemplary embodiment of the present invention;

[0055] Fig. 9 is a perspective view exemplarily illustrating a process of assembling a fluid system and a suspended housing according to an exemplary embodiment of the present invention;

[0056] Fig.10 is a perspective view exemplarily illustrating an assembly process of a suspended fluid system according to an exemplary embodiment of the present invention;

[0057] Fig.11 is a perspective view exemplarily illustrating a process of assembling a rubber system of a suspension according to an exemplary embodiment of the present invention; and

[0058] Fig.12 is a perspective view exemplarily illustrating a suspension according to various exemplary embodiments of the present invention.

[0059] It should be understood that the drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features (including, for example, specific dimensions, directions, locations, and shapes) included in the present invention will be determined in part by the specific intended application and use environment.

[0060] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0061] The following will be referred to in detail various embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. On the other hand, the present invention is intended to cover not only the exemplary embodiments of the present invention, but also various alternative forms, modified forms, equivalent forms and other embodiments that can be included in the spirit of the present invention and within the scope limited by the appended claims.

[0062] Hereinafter, reference will now be made in more detail to exemplary embodiments of the present invention, examples of which are shown in the accompanying drawings so that those skilled in the art can effectively perform exemplary embodiments of the present invention. However, the present invention is not limited to its exemplary embodiments and can be implemented in various ways.

[0063] Throughout the specification, a statement that a component “comprises” an element means that the component may further include other elements unless otherwise stated, and does not exclude the additional elements.

[0064] The present invention aims to provide a suspension for a vehicle in which a stopper can be adjusted and optimized with respect to secondary characteristics more easily and in a variety of patterns without modifying or newly manufacturing a mold for forming a spacer.

[0065] In addition, the present invention is directed to providing a suspension for a vehicle in which the adjustment freedom of a stopper is increased, the expense and cost of a mold is reduced, and the period and expense required for development are reduced.

[0066] So far, in the suspension for a vehicle according to the exemplary embodiment of the present invention, the stopper is independently manufactured such that the shape of the stopper is adjusted and optimized to meet the required characteristics of the stopper, and the stopper is assembled with the housing.

[0067] The mount of the invention, which is a mount for a power train, can be implemented as an engine mount or as an inverted mount with a stop applied.

[0068] Figure 4 is a cross-sectional view schematically illustrating a suspension according to an exemplary embodiment of the present invention; Figure 5 is a perspective view schematically illustrating a suspended stopper assembly according to an exemplary embodiment of the present invention; and Figure 6 is a top view schematically illustrating a suspended stopper assembly according to an exemplary embodiment of the present invention.

[0069] Figure 7is a perspective view exemplarily illustrating a process of assembling a stopper assembly and a suspended housing according to an exemplary embodiment of the present invention; and

[0070] Figure 8 is a top plan view of a state in which a stopper assembly is assembled with a suspended housing according to an exemplary embodiment of the present invention.

[0071] The mount 100 of the illustrated embodiment is an adjustable inverted engine mount as a fluid-tight inverted mount configured such that a rubber system 103 having a spacer 130 and a fluid-tight fluid system 104 are separated from each other.

[0072] The rubber system 103 and the fluid system 104 are assembled with each other to form the integral suspension 100 .

[0073] The present invention will be described in detail with reference to the accompanying drawings. Figure 4 As shown, the inverted suspension 100 according to an exemplary embodiment of the present invention includes: a rubber system 103 and a fluid-sealed fluid system 104, wherein the rubber system 103 includes an isolation member 130 located at the lower side of the suspension; the fluid-sealed fluid system 104 is located at the upper side of the suspension, and the fluid system includes an orifice assembly 170 and a diaphragm 180.

[0074] In addition, in the inverted suspension 100, a support bracket 102 integrally provided with the housing 101 is mounted to an engine (which serves as an example of a powertrain and is not shown), and an additional lower support bracket 111 is mounted to a vehicle body (not shown), and the lower support bracket is combined with a central bolt 110.

[0075] A support bracket 102 mounted to a side portion of the engine is provided integrally with the housing 101 .

[0076] In the inverted suspension 100 , the rubber system 103 may include a center bolt 110 mounted to a vehicle body side, an inner core 120 coupled with the center bolt 110 , and a first spacer 130 formed to be integrally coupled with the inner core 120 .

[0077] In the rubber system 103 , the first spacer 130 supports the inner core 120 and the central bolt 110 , while the first spacer is integrally combined with the housing 101 .

[0078] The first spacer 130 is vulcanized to be integrally combined with the inner surface of the housing 101 , so that after the housing 101 and the inner core 120 are set in a mold, the first spacer 130 surrounds the inner core 120 in the mold.

[0079] In addition, the stopper assembly 140 is coupled to the inner surface of the shell 101 to be arranged on the outer side of the first isolator 130 along the periphery of the first isolator, wherein the stopper assembly 140 coupled to the inner surface of the shell 101 is spaced apart from the inner first isolator 130 of the isolator.

[0080] The stopper assembly 140 is arranged to have an annular shape around the first isolating member 130 and is coupled to the inner surface of the housing 101, and as shown in FIG. Figure 5 , 6 and 8 , the stopper assembly may be arranged in a circular ring shape around the first isolating member 130 .

[0081] In addition, the fluid system 104 disposed above the stopper assembly 140 is inserted into the upper portion of the housing 101 to be coupled to the upper portion of the housing 101 .

[0082] The fluid system 104 includes a cup-shaped hook 150 , an orifice assembly 170 assembled in the cup-shaped hook 150 , a diaphragm 180 , and a second isolator 160 hooked on the cup-shaped hook 150 .

[0083] The cup-shaped hook member 150 may be made of a synthetic resin, and include a plurality of hook members 151 mounted on a lower end portion thereof, the hook members being arranged at predetermined intervals along a circumferential direction of the cup-shaped hook member.

[0084] In the fluid system 104 , the second spacer 160 is located at an upper side of the first spacer 130 to be supported by the first spacer 130 of the rubber system 103 .

[0085] In the fluid system 104, when the orifice assembly 170 and the diaphragm 180 are inserted into the cup-shaped hook 150, each hook 151 of the cup-shaped hook 150 is hooked to the retaining claw 162 of the annular core tube 161 and combined with it, and the annular core tube 161 is integrally combined with the outer surface of the second isolation member 160, thereby forming the cup-shaped hook 150, the second isolation member 160, the orifice assembly 170, and the diaphragm 180 of the fluid system 104 are integrally combined with each other.

[0086] In the fluid system 104 , the second partition 160 together with the orifice assembly 170 on the upper side of the second partition defines an upper fluid chamber C1 .

[0087] In the fluid system 104 , the orifice assembly 170 includes an orifice plate 171 and a diaphragm 175 , wherein the orifice plate 171 is laterally disposed between the second isolator 160 and the diaphragm 180 to divide the internal fluid chamber of the fluid-tight fluid system into an upper fluid chamber C1 and a lower fluid chamber C2 .

[0088] The orifice plate 171 may include an upper plate 172 and a lower plate 173 .

[0089] The orifice plate 171 has an orifice 174 that defines a circular bypass flow path (also referred to as an inertia track) to induce movement of fluid between the upper fluid chamber C1 and the lower fluid chamber C2.

[0090] The diaphragm 180 is disposed at the upper side of the orifice plate 171 , and thus the orifice plate 171 and the diaphragm 180 define a lower fluid chamber C2 .

[0091] The orifice plate 171 includes a hole that communicates the orifice 174 with the upper fluid chamber C1 , and a hole that communicates the orifice 174 with the lower fluid chamber C2 .

[0092] Therefore, the upper fluid chamber C1 , the orifice 174 , and the lower fluid chamber C2 are in communication with each other, so that the fluid moves among the upper fluid chamber C1 , the orifice 174 , and the lower fluid chamber C2 through the hole of the orifice plate 171 .

[0093] In the suspension 100 of the present invention, the independently manufactured and constructed stopper assembly 140 can be adjusted according to the desired characteristics of the suspension, and as shown in FIG. Figure 5 and Figure 6 As shown, the stopper assembly 140 includes an outer ring 141 combined with the housing 101 to closely contact the inner surface of the housing 101 and a stopper member 144 fixed to the inner surface of the outer ring.

[0094] The outer ring 141 may have an annular shape and be made of a synthetic resin.

[0095] In addition, the outer ring 141 includes bent portions 142 provided thereon, which are arranged at predetermined intervals in a circumferential direction of the outer ring and are elastically deformable.

[0096] Each bent portion 142 of the outer ring 141 is a portion that is restored to an original state by its elasticity after the bent portion is deformed.

[0097] The bent portions 142 have a shape bent to protrude from the outer ring 141 to the inner side thereof, and may be provided to be arranged thereon at predetermined intervals along a circumferential surface of the outer ring 141 .

[0098] The bent portion 142 is configured to divide the entire portion of the outer ring into a plurality of portions of predetermined length along the circumferential direction of the outer ring 141 , and each stopper member 144 is integrally fixed to the inner circumferential surface between two adjacent bent portions 142 on the outer ring 141 .

[0099] exist Figure 5 and Figure 6 In the exemplary embodiment shown, the outer ring 141 includes a total of four curved portions 142, which are arranged thereon at predetermined intervals along the circumferential direction of the outer ring, and each stopper member 144 of rubber material is installed on the inner circumferential surface between two adjacent curved portions 142 of the outer ring, so a total of four stopper members 144 are arranged.

[0100] In the stopper assembly 140, the bent portion 142 of the outer ring 141 can shrink in the radial direction of the outer ring when bending, so that the diameter of the outer ring is reduced, and in the current shrinkage state, the outer ring 141 is press-fitted into the housing 101 to be set in the housing 101.

[0101] In addition, after the outer ring 141 in the contracted state is assembled into the housing 101, the bent portion is expanded by its elasticity during the contraction process, so that the shape of the deformed bent portion 142 is restored to the original shape of the bent portion, thereby causing the outer ring 141 to expand or stretch. In this case, the elastic restoring force of the bent portion 142 operates in a direction in which the diameter of the outer ring 141 is increased.

[0102] Therefore, when the outer ring 141 is press-fitted into the shell 101, the outer ring forms a close contact with the inner surface of the shell 101 through the elastic restoring force of the bent portion 142 (i.e., through the force of expanding or extending in its radial direction), thereby preventing the outer ring 141 from being removed from the shell 101.

[0103] In an exemplary embodiment of the present invention, the outer ring 141 includes an assembly protrusion 143, which is installed on the surface outside the outer ring 141, and the shell 101 (the outer ring 141 is assembled to the shell 101) includes an insertion hole 105, and the assembly protrusion 143 is inserted into the insertion hole 105.

[0104] The fitting protrusion 143 and the insertion hole 105 allow the combined state of the stopper assembly 140 and the housing 101 to be maintained so that the stopper assembly 140 is firmly fixed to the inner surface of the housing 101 , thereby preventing the stopper assembly 140 from deviating from the housing 101 .

[0105] In other words, when the stopper assembly 140 is combined with the housing, the outer ring 141 contracts in its radial direction, and as shown in FIG. Figure 7 As shown, it is press-fitted into the housing 101, and then when the fitting protrusion 143 of the outer ring 141 is inserted into the insertion hole 105 of the housing 101, the outer ring 141 can be completely locked to the housing 101 so as not to be removed from the housing.

[0106] In addition, in an exemplary embodiment of the present invention, the outer ring 141 may include a total of four bent portions 142, and in this case, as shown in FIG. Figure 5 , Figure 6 and Figure 8 As shown, the curved portion 142 is disposed diagonally on the outer ring 141 .

[0107] In addition, when each stopper member 144 is arranged on the inner circumferential surface of the outer ring 141 between two adjacent curved portions 142, a total of four stopper members 144 may be provided. In this case, each pair of stopper members 144 installed on the inner circumferential surface of the outer ring 141 are opposite to each other.

[0108] In addition, when Figure 8 The upward and downward directions in the figure are the front and rear directions of the vehicle relative to the vehicle when the suspension 100 is installed to the vehicle. Preferably, each of the two stopper members 144 is respectively arranged at the front and rear sides relative to the front and rear directions of the vehicle to be opposite to each other, and each of the remaining two stopper members 144 is respectively arranged at the left and right sides to be opposite to each other.

[0109] In other words, two stopper members 144 face each other by being arranged at the front and rear thereof, and the remaining two stopper members 144 face each other by being arranged left and right.

[0110] Of course, the entire stop member 144 forming the stop assembly 140 is circularly arranged on the inner circumferential surface of the outer ring 141, and when the circular stop assembly is fixed on the inner surface of the shell 101 of the suspension 100, the circular stop assembly 140 is arranged relative to the first isolation member 130 to surround the first isolation member 130.

[0111] In a general vehicle, although a power train (eg, an engine) can move in a front-rear direction or a left-right direction in an engine room, the power train does not move in a diagonal direction.

[0112] Therefore, when the suspension 100 according to the exemplary embodiment of the present invention is mounted to the vehicle, as described above, the stopper member 144 is arranged forward / rearward and leftward / rightward and surrounds the first spacer 130 , and the bent portion 142 is arranged diagonally.

[0113] Therefore, when the powertrain moves forward / backward or leftward / rightward, the bent portion 142 and the first spacer 130 may not contact each other, and only the stopper member 144 of the rubber material may contact the outer circumferential surface of the first spacer 130 .

[0114] At the same time, if Figure 7As shown, after the stopper assembly 140 is coupled to the inner surface of the housing 101 integrally formed with the first spacer 130 , the fully assembled fluid system 104 is coupled to the upper side of the housing 101 .

[0115] Fig. 9 The process of assembling the fluid system 104 and the housing 101 together is shown.

[0116] like Fig. 9 As shown, in order to engage and fix the fluid system 104 to the housing 101, a plurality of locking protrusions 152 are installed on the outer circumferential surface of the cup-shaped hook 150, and a plurality of guide grooves 106 whose lengths are in the vertical direction are installed on the inner surface of the housing 101, so that the locking protrusions 152 are inserted into the guide grooves to be guided.

[0117] In addition, in the housing 101 , a locking hole 107 into which the locking protrusion 152 of the cup-shaped hook 150 is inserted is formed through a side portion of a lower end portion of the guide groove 106 .

[0118] In an exemplary embodiment of the present invention, a plurality of locking protrusions 152 may be mounted on the cup-shaped hook member 150 so as to be arranged at predetermined intervals along the circumferential direction of the cup-shaped hook member 150, and a plurality of guide grooves 106 and locking holes 107 may be mounted on the shell 101 so as to be arranged at predetermined intervals along the circumferential direction of the shell 101.

[0119] Finally, if Fig. 9 As shown, when the fluid system 104 is inserted into the housing 101 during the assembly process of the fluid system, the locking protrusion 152 of the cup-shaped hook 150 is inserted into the guide groove 106 of the housing 101, and then the fluid system 104 is fully inserted downward into the housing 101 so that the locking protrusion 152 reaches the lower end portion of the guide groove 106.

[0120] Next, hold the handle 153, which is mounted on the cup-shaped hook 150 by protruding from the cup-shaped hook 150, and when the entire fluid system 104 including the cup-shaped hook 150 rotates, the locking protrusion 152 of the cup-shaped hook 150 is inserted into the locking hole 107 of the shell 101, and the cup-shaped hook is locked to the shell, and finally, the fluid system 104 is fully engaged with the shell 101 and fixed to the shell 101.

[0121] in addition, Fig.10It is a stereoscopic diagram exemplarily illustrating the assembly process of the fluid system, and shows the process in which the diaphragm 180, the orifice lower plate 173, the membrane 175, the orifice upper plate 172, and the second isolation member 160 are sequentially assembled in the cup-shaped hook 150 to form the fluid system 104, wherein the cup-shaped hook 150 includes a synthetic resin.

[0122] like Fig.10 As shown, after the diaphragm 180 , the orifice lower plate 173 , the membrane 175 , and the orifice upper plate 172 are sequentially stacked in the cup-shaped hook 150 , the second spacer 160 is finally inserted into the cup-shaped hook 150 to be stacked on the orifice upper plate 172 .

[0123] As described above, the core tube 161 (which can be made of a metal material, such as an aluminum alloy) is integrally combined with the second insulator 160, and after the second insulator 160 is inserted into the cup-shaped hook 150, the second insulator 160 is compressed so that the core tube 161 of the second insulator 160 is hooked by the hook 151 of the cup-shaped hook 150.

[0124] Reference Fig.10 , the hook 151 of the cup-shaped hook 150 is hooked on the end portion of the core tube 161; the second isolation member 160 is integrally fixed to the cup-shaped hook 150; finally, after hooking, all components of the fluid system 104 including the cup-shaped hook 150 are integrally assembled with each other.

[0125] After hooking, fluid is injected into the fluid system 104 in a dry fill method.

[0126] Fig.10 An exemplary embodiment of a hook 151 of a cup-shaped hook 150 is shown, the hook 151 of the cup-shaped hook 150 is hooked on an end portion of a core tube 161 , and the end portion of the core tube 161 is a holding claw hooked by the hook 151 .

[0127] Of course, if Figure 4 As shown, after the holding claw 162 is independently mounted on the outer surface of the core tube 161, the hook 151 of the cup-shaped hook 150 can hook the holding claw 162, and Figure 4 The assembly process of the exemplary embodiment is the same as the above process.

[0128] Fig.11 The assembly process of the rubber system 103 is shown, and after the shell 101 and the internal core 120 combined with the central bolt 110 are set in a vulcanization mold to form the first insulator 130, the first insulator 130 is vulcanized in the mold, whereby the shell 101, the first insulator 130, and the internal core 120 are formed integrally with each other.

[0129] at the same time, Fig.12 is a perspective view exemplarily illustrating a suspension according to various exemplary embodiments of the present invention, and shows a suspension 100 in which a rubber system 103 (normal type rather than inverted type) is located on the upper side of the suspension, and a fluid system 104 is located on the lower side of the suspension.

[0130] In the same manner, the stopper assembly 140 of the same configuration is assembled on the inner surface of the housing 101 , and further, the stopper assembly 140 is circularly arranged along the circumference of the partition 130 a in the housing 101 .

[0131] Therefore, the suspension 100 according to the exemplary embodiment of the present invention is characterized in that the stopper assembly 140 is independently manufactured and provided.

[0132] For convenience of explanation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upward", "downward", "front", "rear", "back", "inner", "outer", "inwardly", "outwardly", "inner", "external", "inside", "outside", "forward" and "rearward" are used to describe the features of the exemplary embodiments with reference to the positions of such features shown in the accompanying drawings. It will be further understood that the term "connect" or its derivatives refer to both direct and indirect connections.

[0133] The foregoing description of the specific exemplary embodiments of the present invention is presented for the purpose of illustration and description. The foregoing description is not intended to be exhaustive, nor is it intended to limit the present invention to the precise form disclosed, and it is apparent that many changes and variations are possible in accordance with the above teachings. The exemplary embodiments are selected and described to explain the specific principles of the present invention and its practical application, so that other technical personnel in the art can realize and utilize the various exemplary embodiments of the present invention and its different selected forms and modified forms. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspension device for supporting a powertrain in a vehicle, the suspension comprising: Housing and insulation; a stopper assembly coupled to the inner surface of the housing to be arranged in an annular shape along the vicinity of the outer side of the partition coupled to the housing, Wherein, the stopper assembly comprises: an outer ring of annular shape bonded to the inner surface of the housing; and a plurality of stopper members fixed to the inner surface of the outer ring and disposed along the outer side of the spacer, each of the plurality of stopper members being spaced apart from one another to contact an inner spacer of the spacer, The outer ring is formed separately from the housing and the plurality of stopper members, the outer ring is made of synthetic resin, and the plurality of stopper members are made of rubber.

2. A suspension device for supporting a powertrain in a vehicle, the suspension comprising: Housing and insulation; a stopper assembly coupled to the inner surface of the housing to be arranged in an annular shape along the vicinity of the outer side of the partition coupled to the housing, Wherein, the stopper assembly comprises: an outer ring of annular shape bonded to the inner surface of the housing; and a plurality of stopper members fixed to the inner surface of the outer ring and disposed along the outer side of the spacer, each of the plurality of stopper members being spaced apart from one another to contact an inner spacer of the spacer, wherein the outer ring includes a curved portion; The bent portion is configured to be bent to be able to contract when the outer ring is press-fitted to the inner surface of the housing while having a bent shape and elastically deforming to restore the contracted shape of the bent portion to an original shape of the bent portion. 3 . The suspension device for supporting a power train in a vehicle according to claim 2 , wherein the curved portion has a curved shape protruding from the outer ring to the inside of the outer ring. 4 . The suspension device for supporting a power train in a vehicle according to claim 2 , wherein the outer ring includes a plurality of curved portions provided thereon, the plurality of curved portions being arranged at predetermined intervals along a circumferential direction of the outer ring.

5. The suspension device for supporting a powertrain in a vehicle according to claim 2, in, The curved portion has a curved shape protruding from the outer ring to the inner side of the outer ring; a plurality of bent portions including bent portions are mounted on the outer ring so as to be arranged at predetermined intervals along a circumferential direction of the outer ring; The plurality of stopper members are arranged such that the stopper members are fixed on the inner surface between adjacent curved portions of the plurality of curved portions of the outer ring.

6. The suspension device for supporting a powertrain in a vehicle according to claim 5, in, The plurality of curved portions include four curved portions mounted on the outer ring to be arranged along a circumferential direction of the outer ring; Each pair of the four curved portions is arranged diagonally on the outer ring.

7. The suspension device for supporting a powertrain in a vehicle according to claim 6, wherein: The plurality of stopper members include: two stopper members installed between adjacent curved portions among the plurality of curved portions and arranged at front and rear sides of the outer ring; The remaining two stopper members are arranged on the left and right sides of the outer ring with respect to the front-rear direction of the vehicle.

8. The suspension device for supporting a powertrain in a vehicle according to claim 2, in, a fitting protrusion mounted on an outer surface of the outer ring by protruding from the outer ring, and an insertion hole is provided on the housing, and the outer ring is fitted into the insertion hole to accommodate the fitting protrusion therein; The fitting protrusion is inserted into the insertion hole so that the outer ring is fixed to the housing.

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