CN111469655A - Vibration isolator suspension - Google Patents
Vibration isolator suspension Download PDFInfo
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- CN111469655A CN111469655A CN201911112483.3A CN201911112483A CN111469655A CN 111469655 A CN111469655 A CN 111469655A CN 201911112483 A CN201911112483 A CN 201911112483A CN 111469655 A CN111469655 A CN 111469655A
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- Prior art keywords
- support
- stopper
- suspension
- supporting
- buffer hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/108—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The inventive isolator suspension comprises: an inner body (120) having an annular shape and having a through hole (110) formed at the center thereof for inserting the vibration isolator pin (10); an outer body (130) having a circular ring shape and formed at an outer side spaced from the inner body (120); a plurality of support parts (200) which connect and support the outer diameter part (121) of the inner main body (120) and the inner diameter part (131) of the outer main body (130); a plurality of buffer holes (300) formed between the supporting parts.
Description
Technical Field
The present invention relates to an isolator suspension for fixing an automobile exhaust pipe, and more particularly, to an isolator suspension for fixing an automobile exhaust pipe, which fixes an exhaust pipe formed on a bottom surface of an automobile to a vehicle body, reduces vibration and noise generated from the exhaust pipe, and prevents damage and deformation of the suspension due to heat and load generated from an exhaust device.
Background
Generally, an engine of an automobile is operated by taking in a mixture gas of air and fuel into a cylinder and then burning the mixture gas, and the combustion gas generated at this time is discharged to the outside through an exhaust pipe.
The exhaust pipe vibrates due to the engine and the exhaust combustion gas, and such vibration causes noise, and therefore, an additional suspension is provided between the vehicle body and the exhaust pipe to reduce vibration and noise.
The suspension is generally a member that performs a function of fixing the exhaust pipe to the lower floor frame and the vehicle body of the automobile.
As described above, the exhaust pipe hanger has a function of attaching the exhaust pipe to the vehicle body while reducing vibration and noise of the exhaust pipe and the vehicle body.
The exhaust pipe for an automobile often has a downward load due to gravity, and the suspension lower support often has a load supporting the inner body of the exhaust pipe, and the load is doubled during displacement motion, which causes breakage and deformation.
Since the suspension is exposed to the load and vibration of the exhaust pipe for a long time, a certain level of dynamic and static characteristics and durability are required.
The conventional exhaust pipe suspension has a suitable structure for reducing noise and vibration, but the durability thereof is greatly reduced, which causes a problem of breakage of the suspension.
In order to prevent the above problem, an additional member such as a separate device for offsetting the load may be attached to the periphery of the suspension to improve the durability of the suspension, but the above method requires an additional process, thereby reducing the production efficiency.
[ Prior Art document ]
[ patent document ]
(patent document 1) patent document 1 Korean laid-open patent publication No. 10-2018-0115063
(patent document 2) patent document 2 Korean registration patent publication No. 10-1748434
(patent document 3) patent document 3 Japanese laid-open patent publication No. JP2000-055125A
(patent document 4) patent document 4 Korean registration patent publication No. 10-1887387
Disclosure of Invention
Technical problem to be solved by the invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an automobile exhaust pipe fixing vibration isolator suspension in which a plurality of support portions for connecting an outer body and an inner body of the suspension are formed in a basic suspension shape, and the upper side and the lower side of the support portions are different from each other, and the lower side of the suspension always has a load for supporting an exhaust pipe, and the load is doubled during displacement motion, which causes breakage and deformation, thereby improving durability against the load.
Further, it is an object of the present invention to provide an exhaust pipe fixing isolator suspension having a support structure that deforms regardless of a stretching direction in order to improve durability against contraction and stretching, since an upper support structure is contracted and stretched in response to a load and an impact of an exhaust pipe.
Technical scheme for solving problems
In order to solve the above problems, the present invention provides an isolator suspension comprising: an inner body 120 having an annular shape and having a through hole 110 formed at the center thereof for inserting the isolator pin 10; an outer body 130 having a circular ring shape and formed at an outer side spaced apart from the inner body 120; a plurality of supporting parts 200 connecting and supporting the outer diameter part 121 of the inner body 120 and the inner diameter part 131 of the outer body 130; a plurality of buffer holes 300 formed between the supporting parts.
Preferably, the supporting part 200 is composed of a1 st supporting part 210 formed at the upper part of the left side when it is divided into an upper part and a lower part with reference to a horizontal line passing through the center of the through hole 110 and a left side and a right side with reference to a vertical line passing through the center of the through hole 110; a2 nd support part 220 formed at the upper part of the right side; a 3 rd supporting part 230 formed at a lower portion of the left side; the 4 th supporting part 240 formed at the lower part of the right side is formed.
The buffer hole 300 is formed by: a1 st buffer hole 310 formed between the 1 st and 2 nd supporting parts 210 and 220; a2 nd buffer hole 320 formed between the 3 rd and 4 th supporting parts 230 and 240; a 3 rd buffer hole 330 formed between the 1 st and 3 rd supporting parts 210 and 230; and a 4 th buffer hole 340 formed between the 2 nd supporting part 220 and the 4 th supporting part 240.
And, a joint 213 is formed at a predetermined position of the 1 st supporting part 210,
the 1 st supporting part 210 is formed by: an 11 th connection part 211 formed between the outer diameter part 121 of the inner body 120 and the joint part; and a 12 th connection part 212 formed between the inner diameter part 131 of the outer body 130 and the joint part, wherein the imaginary center line a1 of the 11 th connection part 211 and the imaginary center line a2 of the 12 th connection part 212 cross the joint part without forming a balance state.
In the 1 st supporting part 210, the 12 th connecting part 212 formed on the inner diameter surface 132 of the outer body 130 has a longer radial length W2 than the radial length W1 of the 11 th connecting part 211 formed on the outer diameter part 121 of the inner body 120.
The 3 rd support part 230 is configured to connect a 31 st connection part 231 connected to a left lower portion of the outer diameter part 121 of the inner body 120 and a 32 nd connection part 232 connected to a left lower portion of the inner diameter part 131 of the outer body 130, and the 3 rd support part 230 is configured to obliquely connect a portion connected from the 31 st connection part 231 to form a 31 st inclined surface 233, and also obliquely connect a portion connected from the 32 nd connection part 232 to form a 32 nd inclined surface 234.
Further, the virtual center line D1 of the 31 st inclined surface 233 and the virtual center line D2 of the 32 nd inclined surface 234 are linearly connected to each other and displacement is controlled, so that the rigidity of the 3 rd supporting part 230 can be adjusted by adjusting the inclination formed by the 31 st inclined surface 233 and the 32 nd inclined surface 234.
The 1 st and 2 nd support parts 210 and 220, and the 3 rd and 4 th support parts 230 and 240 are symmetrically formed on the left and right sides with respect to the vertical line.
Further, the width L2 and the thickness t2 of the 3 rd supporting part 230 are formed to be wider (L2 > L1) and thicker (t2> t1) than the width L1 and the thickness t1 of the 1 st supporting part 210, so that the inner body 120 can be prevented from sagging and the durability can be improved, from the front view of the suspension.
In order to control the displacement of the inner body 120 and absorb the impact, a stopper is formed on the inner diameter portion 131 of the outer body 130 of the buffer hole 300, the stopper is formed to protrude from the inner diameter portion 131 of the outer body 130 to the outer diameter portion 121 side of the inner body 120, and the stopper is formed of the 1 st stopper 410 formed in the 1 st buffer hole 310; a2 nd stopper 420 formed at the 2 nd buffer hole 320; a 3 rd stopper 430 formed at the 3 rd buffer hole 330; a 4 th stopper 440 formed at the 4 th buffer hole 340.
The 1 st stopper 410 is formed on the inner diameter surface 132 of the outer body 130 forming a part of the 1 st buffer hole 310, and is spaced apart from the outer diameter surface 122 of the inner body 120 forming a part of the 1 st buffer hole 310.
At this time, the inner surface 411 of the 1 st stopper 410 facing the outer diameter part 121 of the inner body 120 is formed of a concave curved surface 411a, and the stopper radial direction length W4 formed on the inner diameter part surface 132 of the lower side of the outer body 130 is formed to be longer than the stopper radial direction length W3 formed on the inner circumferential surface of the upper side of the inner diameter part surface 132.
Also, the concave curved surface 411a is formed with the same curvature as the outer diameter portion of the inner body 120, and protruding bosses 412, 413 are formed at both end portions of the curved surface 411a so as to absorb the impact by the compression deformation of the bosses 412, 413.
The 3 rd stopper 430 is formed on the inner diameter surface 132 of the lower side of the outer body 130 which is a part of the 3 rd buffer hole 330 so as to be spaced apart from the outer diameter surface 122 of the inner body 120, and the protruding surface 431 of the 3 rd stopper 430 which faces the outer diameter portion 121 of the inner body 120 is formed of a curved surface 432 which is recessed so as to contact the outer diameter surface 122 of the inner body 120.
The radius of the curved surface 432 is the same as the radius of the outer diameter portion of the inner body 120, and the rear surface 434 of the 3 rd stopper 430 protrudes more than the front surface 433 to form the inclined surface 435, thereby absorbing impact by compression deformation of the inclined surface 435.
Further, the axial length L3 of the inner body 120 is longer than the axial length L4 of the outer body 130 (L3 > L4), so that the isolator pin 10 coupled to the through-hole 110 of the inner body 120 can be stably fixed.
The through holes 110 of the inner body 120 are symmetrically formed with respect to a center line (C-C ') perpendicular to the center of the width of the inner body 120, and the diameter of the through holes 110 is maintained at the same diameter 111 at a predetermined interval of the center line (C-C'), but the inclined portion 112 is formed as the diameter of the hole is larger toward the outer contour, thereby facilitating the assembly of the counterpart.
At this time, the suspension is formed of rubber or thermoplastic elastomer TPE or Silicone (Silicone) having elasticity.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, the present invention has the following effects: the upper connection part and the lower connection part are formed differently, the upper connection part is formed without a large impedance when being displaced, and the lower connection part can prevent the suspension from drooping and control the displacement, thereby effectively reducing the vibration and noise of the exhaust pipe from being transmitted to the vehicle body, and preventing the exhaust pipe and the vehicle body from being interfered by a strong impact during the driving, thereby improving the durability.
Further, four stoppers are formed to control large displacement, absorb impact, and disperse load, thereby improving durability.
Drawings
FIG. 1 is a cross-sectional view of a suspension in accordance with a preferred embodiment of the present invention;
FIG. 2 is a front view showing a support portion and a stopper of a suspension according to a preferred embodiment of the present invention;
fig. 3 is a front view showing a support portion, a stopper, and a cushion portion of a suspension according to a preferred embodiment of the present invention;
FIG. 4 is a front and cross-sectional view of the limiter and inner body of the suspension fork of the preferred embodiment of the present invention;
fig. 5 is a front view of a bracket and suspension incorporating a preferred embodiment of the present invention.
Description of the reference numerals
110, through hole 120, inner body
130 outer body 200 support
300 buffer hole 210 support part 1
220, 2 nd support part 230, 3 rd support part
240 support part 4 310 buffer hole 1
320, 2 nd buffer hole 330, 3 rd buffer hole
340, 4 th buffer hole 410, 1 st limiting stopper
420, 2 nd limiter 430, 3 rd limiter
440 th 4 position limiter
Detailed Description
In the present invention, the terms used in the present invention are selected from the conventional terms which are widely used at present, but there are also terms which are arbitrarily selected by the applicant in specific cases, and in this case, it should be understood that they are not simple term names but are used in the meanings described or used in the detailed description of the present invention for carrying out the present invention.
Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments illustrated in the accompanying drawings. Here, it should be noted that the directions of the upper, lower, left, right, left, bottom, and the like are used with reference to the drawings.
The present invention may be embodied in various forms and is not limited to the embodiments described herein. Like parts are given the same reference numerals throughout the specification.
Referring to fig. 1 to 3, a suspension according to an embodiment of the present invention is formed of: an inner body 120 having a circular ring shape and having a through hole 110 formed at the center thereof, into which the isolator pin 10 is inserted; an outer body 130 having a circular ring shape and formed at an outer side spaced apart from the inner body 120; a plurality of supporting parts 200 connecting and supporting the outer diameter part 121 of the inner body 120 and the inner diameter part 131 of the outer body 130; and a plurality of buffer holes 300 formed between the supporting parts.
At this time, when the horizontal line passing through the center of the through hole 110 is divided into the upper portion and the lower portion as a reference, and the vertical line passing through the center of the through hole 110 is divided into the left side and the right side as a reference, the support portion 200 includes: a1 st supporting part 210 formed at the upper left part; a2 nd support part 220 formed at the upper part of the right side; a 3 rd supporting part 230 formed at a lower portion of the left side; and a 4 th supporting part 240 formed at a lower portion of the right side.
Also, the buffer hole 300 includes: a1 st buffer hole 310 formed between the 1 st and 2 nd supporting parts 210 and 220; a2 nd buffer hole 320 formed between the 3 rd and 4 th supporting parts 230 and 240; a 3 rd buffer hole 330 formed between the 1 st and 3 rd supporting parts 210 and 230; a 4 th buffer hole 340 formed between the 3 rd supporting part 230 and the 4 th supporting part 240.
A joint 213 is formed at a predetermined position of the 1 st supporting part 210.
And, the 1 st support part is composed of an 11 th connection part 211 formed between the outer diameter part 121 of the inner main body 120 and the joint part; the 12 th connection part 212 formed between the inner diameter part 131 of the outer body 130 and the joint part is formed, and at this time, the imaginary center line a1 of the 11 th connection part 211 and the imaginary center line a2 of the 12 th connection part 212 are not parallel to each other, and thus, they are formed to cross each other at the joint part.
In the 1 st supporting part 210, the radial direction length W2 of the 12 th connecting part 212 formed on the inner diameter surface 132 of the outer body 130 is longer than the radial direction W1 of the 11 th connecting part 211 formed on the outer diameter part 121 of the inner body 120.
That is, the joint 213 is formed by intersecting the imaginary center line a1 of the 11 th connection part 211 and the imaginary center line a2 of the 12 th connection part 212 without being parallel to each other, so that the 1 st support part is easily contracted and stretched according to the displacement of the inner body 120 of the suspension due to the self weight and vibration of the muffler, and absorbs the vibration by the convenient contraction and stretching, thereby improving the durability.
Further, the 1 st supporting part 210 is formed such that the radial direction length W2 of the 12 th connecting part 212 formed on the inner diameter part surface 132 of the outer body 130 is longer than the radial direction W1 of the 11 th connecting part 211 formed on the outer diameter part 121 of the inner body 120, so that the durability is improved by the radial direction length W2 of the connecting part of the 12 th connecting part 212, and the load or vibration transmitted from the inner diameter part of the inner body 120 is easily deformed by the 11 th connecting part 211 formed on the outer diameter part 121 of the inner body 120 by being stretched and compressed at the joint part 213, and thus the vibration or load is offset by the deformation.
The 3 rd support part 230 is configured to connect a 31 st connection part 231 connected to a left lower portion of the outer diameter part 121 of the inner body 120 and a 32 nd connection part 232 connected to a left lower portion of the inner diameter part 131 of the outer body 130, and the 3 rd support part 230 connects a portion connected from the 31 st connection part 231 in an inclined manner to form a 31 st inclined surface 233, and connects a portion connected from the 32 nd connection part 232 in an inclined manner to form a 32 nd inclined surface 234.
The virtual center line D1 of the 31 st inclined surface 233 and the virtual center line D2 of the 32 nd inclined surface 234 are connected by a straight line, and displacement is controlled, and the inclination formed by the 31 st inclined surface 233 and the 32 nd inclined surface 234 is adjusted, whereby the rigidity of the 3 rd supporting part 230 can be adjusted.
The 1 st and 2 nd support parts 210 and 220, and the 3 rd and 4 th support parts 230 and 240 are symmetrically formed on the left and right sides with respect to the vertical line.
In addition, the width L2 and the thickness t2 of the 3 rd support part 230 are formed to be wider (L2 > L1) and thicker (t2> t1) than the width L1 and the thickness t1 of the 1 st support part 210 with respect to the suspension as viewed from the front, so that the sagging of the inner body 120 can be improved and the durability can be improved.
Further, the 1 st and 2 nd support parts 210 and 220 are formed at both sides of the upper portion of the inner body 120, the 1 st and 2 nd support parts 210 and 220 are formed with joint parts, and the 3 rd support part 230 is formed to have a wider width L2 and a thicker thickness t2 than the width L1 and the thickness t1 of the 1 st support part 210 (L2 > L1) and a thicker thickness t2> t1), so that it is easy to contract and stretch according to the displacement of the upper side of the inner body 120, and a structure capable of absorbing vibration caused by shaking of the vehicle body and the muffler or absorbing an impact load caused by an external factor is formed.
Further, the 3 rd and 4 th supporting parts 230 and 240 are formed at both lower sides of the inner body 120, the 3 rd and 4 th supporting parts 230 and 240 are connected to a straight line by a virtual center line connecting both side supporting parts of the inner and outer bodies, and the rigidity of the 3 rd and 4 th supporting parts 230 and 240 is adjusted by an inclination formed by the virtual center line, and the width L2 and the thickness t2 of the 3 rd supporting part 230 are formed to be wider (L2 > L1) and thicker (t2> t1) than the width L1 and the thickness t1 of the 1 st supporting part 210, and the 4 th supporting part 240 is formed symmetrically at the right side with respect to the vertical line, thereby reducing a deformation amount due to a load and displacement of the exhaust pipe applied to the inner body 120 in a downward direction, absorbing vibration and impact due to a shaking of a vehicle body and a muffler load, and improving durability.
In addition, since the stopper protruding from the inner diameter portion 131 of the outer body 130 to the outer diameter portion 121 of the inner body 120 is formed in the inner diameter portion 131 of the outer body 130 of the buffer hole 300, displacement of the inner body 120 can be controlled and impact can be absorbed. And, the stopper is composed of a1 st stopper 410 formed at the 1 st buffer hole 310; a2 nd stopper 420 formed at the 2 nd buffer hole 320; a 3 rd stopper 430 formed at the 3 rd buffer hole 330; a 4 th stopper 440 formed at the 4 th buffer hole 340.
The 1 st stopper 410 is formed on the inner diameter surface 132 of the outer body 130 forming a part of the 1 st buffer hole 310, and is formed to be spaced apart from the outer diameter surface 122 of the inner body 120 forming a part of the 1 st buffer hole 310.
At this time, the inner surface 411 of the 1 st stopper 410 facing the outer diameter part 121 of the inner body 120 is formed of a concave curved surface 411a, and the stopper radial direction length W4 formed on the inner diameter part surface 132 of the lower side of the outer body 130 is formed to be longer than the stopper radial direction length W3 formed on the inner circumferential surface of the upper side of the inner diameter part surface 132.
The concave curved surface 411a has the same curvature as the outer diameter portion of the inner body 120, and protruding convex portions 412 and 413 are formed at both ends of the curved surface 411a, so that the impact is absorbed by the compression deformation of the convex portions 412 and 413.
The 2 nd stopper 420 is formed on the inner diameter surface 132 of the outer body 130 which is a part of the 2 nd buffer hole 320, and is formed to be spaced apart from the outer diameter surface 122 of the inner body 120 which is a part of the 2 nd buffer hole 320.
The 2 nd stopper 420 is formed to be symmetrical with the 1 st stopper 410 with reference to the horizontal line.
Thus, the 1 st stopper 410 and the 2 nd stopper 420 limit the range of the up and down displacement of the inner body 120 by the heights H1, H2 protruding from the inner diameter part surface 132 of the outer body 130,
in an impact section where vibration or an impact load transmitted to the suspension is larger than a normal section, the outer diameter portion of the inner body 120 of the suspension is in contact with the recessed curved surface 411a of the 1 st stopper 410, and when the load increases thereafter, the smaller vibration or load can be offset by the compressive deformation of the protruding portion protruding on the recessed curved surface 411a of the stopper,
since the stopper is formed in such a manner that the radial direction length W4 of the stopper is longer than the radial direction length W3 of the stopper formed on the upper inner circumferential surface, the area of the inner diameter surface 132 of the outer body 130 is longer than the area of the contact surface for transmitting the load, and the load increased by the compressive deformation of the protruding portion is absorbed by the upper portion of the 1 st stopper 410, so that the deformation of the 1 st supporting portion 210 and the 2 nd supporting portion 220 can be reduced, and the durability can be improved.
The 3 rd stopper 430 is formed on the inner diameter surface 132 of the lower side of the outer body 130 which is a part of the 3 rd buffer hole 330, and is spaced apart from the outer diameter surface 122 of the inner body 120, and the protruding surface 431 of the 3 rd stopper 430 which faces the outer diameter portion 121 of the inner body 120 is formed of a curved surface 432 which is recessed so as to contact the outer diameter surface 122 of the inner body 120.
The radius of the curved surface 432 is the same as the radius of the outer diameter part of the inner body 120, the rear surface 434 of the 3 rd stopper 430 protrudes more than the front surface 433 to form an inclined surface 435, and the impact is absorbed by the compression deformation of the inclined surface 435.
And, the 4 th stopper 440 is formed symmetrically to the 3 rd stopper 430 with reference to the vertical line.
Accordingly, the 3 rd and 4 th stoppers 430 and 440 absorb the load by limiting the range of the left and right displacement of the inner body 120, and absorb the impact and vibration applied to the 1 st and 2 nd supporting parts 210 and 220, and the 3 rd and 4 th supporting parts 230 and 240, thereby reducing damage and deformation and improving durability.
Also, referring to fig. 4, the axial length L3 of the inner body 120 of the suspension according to an embodiment of the present invention is formed to be longer (L3 > L4) than the axial length L4 of the outer body 130, so that the contact length of the isolator pin 10 coupled to the through-hole 110 of the inner body 120 is formed to be longer, and the isolator pin 10 can be stably fixed.
The through holes 110 of the inner body 120 are symmetrically formed with respect to a center line (C-C ') perpendicular to the center of the width of the inner body 120, and the diameter of the through holes 110 is maintained at the same diameter 111 at a predetermined interval of the center line (C-C'), but the diameter of the holes is increased toward the outer contour to form the inclined portion 112, thereby facilitating the assembly of the counterpart.
At this time, the suspension is formed of rubber or thermoplastic elastomer (TPE) or Silicone (Silicone) having elasticity.
Further, referring to fig. 5, according to the suspension according to the embodiment of the present invention, since the protrusion 134 or the recess 135 is formed on the outer diameter surface 133 of the outer body 130, it is possible to secure a correct position when the suspension is assembled to the bracket, and to prevent the rotation in the bracket in an assembled state.
The above is an exemplary illustration of the present invention. The embodiments described in the specification are only for the purpose of illustration and are not intended to limit the technical spirit of the present invention, and therefore, a person skilled in the art of the present invention can make various modifications and variations without departing from the technical spirit of the present invention. Therefore, the scope of the present invention should be construed in accordance with the matters described in the claims, and technical matters within the equivalent scope thereof also belong to the scope of the present invention.
Claims (9)
1. An isolator suspension, comprising:
an inner body (120) having an annular shape and having a through hole (110) formed at the center thereof for inserting the vibration isolator pin (10);
an outer body (130) having a circular ring shape and formed at an outer side spaced from the inner body (120);
a plurality of support parts (200) which connect and support the outer diameter part (121) of the inner main body (120) and the inner diameter part (131) of the outer main body (130);
a plurality of buffer holes (300) formed between the supporting parts.
2. The isolator suspension of claim 1,
when a horizontal line passing through the center of the through hole (110) is used as a reference to be divided into an upper part and a lower part, and a vertical line passing through the center of the through hole (110) is used as a reference to be divided into a left side and a right side,
the support part (200) is composed of a1 st support part (210) formed at the upper part of the left side; a2 nd support part (220) formed at the upper part of the right side; a 3 rd supporting part (230) formed at the lower part of the left side; the 4 th supporting part (240) formed at the lower part of the right side.
3. The isolator suspension of claim 2,
the buffer hole (300) is formed by the following structure:
a1 st buffer hole (310) formed between the 1 st support part (210) and the 2 nd support part (220);
a2 nd buffer hole (320) formed between the 3 rd supporting part (230) and the 4 th supporting part (240);
a 3 rd buffer hole (330) formed between the 1 st supporting part (210) and the 3 rd supporting part (230);
and a 4 th buffer hole (340) formed between the 2 nd support part (220) and the 4 th support part (240).
4. The isolator suspension of claim 3,
a joint part (213) is formed at a predetermined position of the 1 st supporting part (210),
the 1 st support part (210) is formed by the following structure:
an 11 th connection part (211) formed between the outer diameter part (121) of the inner body (120) and the joint part;
a 12 th connecting part (212) formed between the inner diameter part (131) of the outer body (130) and the joint part,
at this time, the virtual center line (A1) of the 11 th connecting part (211) and the virtual center line (A2) of the 12 th connecting part (212) do not form a balanced state and intersect at the joint part.
5. The isolator suspension of claim 4,
the 1 st support part (210) is formed such that the length (W2) in the radial direction of the 12 th connection part (212) formed on the inner diameter surface (132) of the outer body (130) is longer than the length (W1) in the radial direction of the 11 th connection part (211) formed on the outer diameter part (121) of the inner body (120).
6. The isolator suspension of claim 5,
the 3 rd support part 230 is configured to connect a 31 st connection part 231 connected to a left lower part of an outer diameter part 121 of the inner body 120 and a 32 nd connection part 232 connected to a left lower part of an inner diameter part 131 of the outer body 130, the 3 rd support part 230 is configured to obliquely connect a part connected from the 31 st connection part 231 to form a 31 st inclined surface 233, and a part connected from the 32 nd connection part 232 is also obliquely connected to form a 32 nd inclined surface 234,
the imaginary center line (D1) of the 31 st inclined surface (233) and the imaginary center line (D2) of the 32 nd inclined surface (234) are connected by a straight line to control displacement,
thus, the rigidity of the 3 rd supporting part (230) can be adjusted by adjusting the inclination formed by the 31 st inclined surface (233) and the 32 nd inclined surface (234).
7. The isolator suspension of claim 6,
when the suspension is viewed from the front, the width (L2) and the thickness (t2) of the 3 rd supporting part (230) are wider (L2 > L1) and thicker (t2> t1) than the width (L1) and the thickness (t1) of the 1 st supporting part (210), so that the inner body (120) can be prevented from sagging and the durability can be improved.
8. The isolator suspension of claim 7,
the 1 st support part (210) and the 2 nd support part (220), and the 3 rd support part (230) and the 4 th support part (240) are symmetrically formed on the left and right sides with respect to the vertical line.
9. The isolator suspension of claim 8,
in order to control the displacement of the inner body (120) and absorb the impact, a stopper is formed on the inner diameter part (131) of the outer body (130) of the buffer hole (300), the stopper is formed by protruding from the inner diameter part (131) of the outer body (130) to the outer diameter part (121) of the inner body (120),
the stopper is composed of a1 st stopper (410) formed at the 1 st buffer hole (310); a2 nd stopper 420 formed at the 2 nd buffer hole 320; a 3 rd stopper (430) formed at the 3 rd buffer hole (330); a 4 th stopper 440 formed at the 4 th buffer hole 340.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0008919 | 2019-01-23 | ||
| KR1020190008919A KR102032825B1 (en) | 2019-01-23 | 2019-01-23 | Isolator hanger |
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| Publication Number | Publication Date |
|---|---|
| CN111469655A true CN111469655A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911112483.3A Pending CN111469655A (en) | 2019-01-23 | 2019-11-14 | Vibration isolator suspension |
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| KR (1) | KR102032825B1 (en) |
| CN (1) | CN111469655A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11635013B2 (en) | 2020-07-13 | 2023-04-25 | Cikautxo, S. Coop. | Automotive exhaust system isolator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080053737A1 (en) * | 2006-08-29 | 2008-03-06 | The Pullman Company | Exhaust isolator |
| KR101748434B1 (en) * | 2016-11-17 | 2017-06-28 | 주식회사 디엠씨 | hanger for fixing the exhaust pipe of a car |
| KR20180088013A (en) * | 2017-01-26 | 2018-08-03 | 주식회사 디엠씨 | Hanger for automobile exhaust with bent fastening protrusion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000055125A (en) | 1998-08-07 | 2000-02-22 | Toyo Tire & Rubber Co Ltd | Supporting device for exhaust pipe |
| KR102428835B1 (en) * | 2015-10-08 | 2022-08-04 | 한온시스템 주식회사 | Carrier for Motor Vehicle |
| KR101927745B1 (en) | 2017-04-12 | 2019-02-26 | 주식회사 디엠씨 | Muffler hanger for vehicle |
-
2019
- 2019-01-23 KR KR1020190008919A patent/KR102032825B1/en active IP Right Grant
- 2019-11-14 CN CN201911112483.3A patent/CN111469655A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080053737A1 (en) * | 2006-08-29 | 2008-03-06 | The Pullman Company | Exhaust isolator |
| KR101748434B1 (en) * | 2016-11-17 | 2017-06-28 | 주식회사 디엠씨 | hanger for fixing the exhaust pipe of a car |
| WO2018092978A1 (en) * | 2016-11-17 | 2018-05-24 | 주식회사 디엠씨 | Hanger for fixing vehicle exhaust pipe |
| KR20180088013A (en) * | 2017-01-26 | 2018-08-03 | 주식회사 디엠씨 | Hanger for automobile exhaust with bent fastening protrusion |
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| Publication number | Publication date |
|---|---|
| KR102032825B1 (en) | 2019-10-16 |
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Application publication date: 20200731 |