KR20170037215A - Strut suspension having structure for preventing rotation of shock absorber rod - Google Patents

Strut suspension having structure for preventing rotation of shock absorber rod Download PDF

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Publication number
KR20170037215A
KR20170037215A KR1020150136476A KR20150136476A KR20170037215A KR 20170037215 A KR20170037215 A KR 20170037215A KR 1020150136476 A KR1020150136476 A KR 1020150136476A KR 20150136476 A KR20150136476 A KR 20150136476A KR 20170037215 A KR20170037215 A KR 20170037215A
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KR
South Korea
Prior art keywords
shock absorber
absorber rod
rod
protrusion
rotation preventing
Prior art date
Application number
KR1020150136476A
Other languages
Korean (ko)
Inventor
방정석
Original Assignee
현대위아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR1020150136476A priority Critical patent/KR20170037215A/en
Publication of KR20170037215A publication Critical patent/KR20170037215A/en

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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
    • 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
    • B60G2204/46—Means for locking the suspension
    • B60G2204/4604—Means for locking the suspension mechanically, e.g. using a hook as anticreep mechanism
    • 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
    • B60G2206/8207—Joining by screwing
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The present invention relates to a strut type suspension, and more specifically, it is not necessary to use a separate dedicated paper for preventing the rotation of a shock absorber rod when assembling the vehicle body, and it is possible to minimize abrasion of the shock absorber rod during disassembly and assembly, To a load-rotation preventing structure capable of preventing a reduction in load on a strut type suspension.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a strut-type suspension having a rod-

The present invention relates to a strut type suspension, and more specifically, it is not necessary to use a separate dedicated paper for preventing rotation of a shock absorber rod when assembling the vehicle body, and it is possible to minimize abrasion of the shock absorber rod during disassembly and assembly, To a load-rotation preventing structure capable of preventing a reduction in load on a strut type suspension.

The strut suspension is a strut type suspension with a shock absorber and is connected between the axle and the vehicle body to move the wheels a certain distance in the front and back direction of the vehicle to improve ride comfort. It performs two functions, decision and load bearing.

1 is a view showing a conventional strut type suspension.

1, a conventional strut type suspension 10 includes a shock absorber 11 connected between an axle and a vehicle body, and a shock absorber 11 connected between the shock absorber 11 and the vehicle body to absorb the vibration of the shock absorber 11. [ And an insulator 12 (insulator).

The shock absorber 11 includes a cylinder 11a and a shock absorber rod 11b.

The strut type suspension 10 includes a spring 14 for assisting elasticity of the shock absorber 11, a bumper stopper 14 for restricting upward and downward movement of the cylinder 11a, a spring 14 A strut bearing 17 for supporting a load transmitted to the shock absorber 11 and an upper pad 15 for preventing interference between the cylinder 11a and the body, And a dust cover (18) for preventing foreign matter from entering into the inside of the dust cover (18).

The upper end of the shock absorber rod 11b is fastened by a fixing nut 13 and assembled to the vehicle body through the insulator 12. The shock absorber rod 11b is rotatable in the cylinder 11a It is necessary to hold the fixing nut 13 so that it does not rotate by the fastening force when it is fastened.

The shock absorber rod 11b has a bolt portion b which can be screwed on the upper end of the shock absorber rod 11b and a corner portion a, Quot; part ") is formed.

In addition, the edge portion (a) has a semicircular or polygonal cross-section, and has a structure in which a dedicated jig is inserted so as not to rotate.

That is, in the case of the conventional strut type suspension 10, the corner portion of the shock absorber rod 11b is not gripped by the jig when assembled to the vehicle body, and the tightening of the fixing nut 13 is completed.

Since the corner portion (a) wears during the fastening process, there is a problem that the tightening torque of the fixing nut (13) is lowered. Also, the dedicated jig is also worn down with time, There is an inconvenience.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a shock absorber which can prevent a reduction in tightening torque when a fixing bolt is fastened by removing a corner portion for preventing rotation of a shock absorber rod, And to provide a strut type suspension which does not require the use of a dedicated paper.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a strut suspension connected between an axle and a vehicle body to improve a ride feeling by moving a wheel in a front and rear direction of the vehicle by a predetermined distance, the strut suspension comprising: a cylinder connected to the axle; And a shock absorber rod having one end inserted into the cylinder and moving up and down, and the other end fixed to the vehicle body through an insulator for vibration insulation, and the other end of the shock absorber rod And at least one anti-rotation protrusion protruding sideways from the center so as not to rotate when engaged with the insulator is formed.

According to a preferred embodiment of the present invention, a center of the insulator is provided with a rod insertion hole through which the other end of the shock absorber rod can be inserted, and an inner circumferential surface of the rod insertion hole is provided with a projection insertion groove .

In a preferred embodiment, the rotation preventing protrusions are formed of two rotation preventing protrusions protruding in the opposite directions on the same straight line, and the protrusion insertion grooves are formed with two protrusion insertion grooves corresponding to the rotation preventing protrusions.

In the preferred embodiment, the shock absorber rod is formed at the center of the other end face with a diameter smaller than the diameter of the shock absorber rod and integrally formed with a bolt portion to which a fixing nut can be coupled, And is provided at the lower outer periphery of the part.

In a preferred embodiment, the rotation preventing protrusion is protruded to the upper portion of the other end surface of the shock absorber rod, and does not protrude laterally outward of the shock absorber rod.

In a preferred embodiment, the end section of the bolt portion is circular.

The present invention further provides a vehicle provided with the strut type suspension between an axle and a vehicle body.

The present invention has the following excellent effects.

According to the strut type suspension of the present invention, the corner portion for preventing the rotation of the shock absorber rod is removed and the rotation preventing protrusion is formed, so that the lowering of the tightening torque due to the wear of the corner portion can be fundamentally prevented, There is an advantage that the weight and cost can be saved.

In addition, according to the strut type suspension of the present invention, there is an advantage that workability can be improved since the use of a dedicated jig is not necessary in assembling.

1 is a view for explaining a conventional strut type suspension,
2 is a view for explaining a strut type suspension according to an embodiment of the present invention,
4 is a view for explaining an insulator of a strut type suspension according to an embodiment of the present invention,
5 is a view for explaining a fastening process of a strut type suspension according to an embodiment of the present invention,
6 is a view showing a strut type suspension according to an embodiment of the present invention is fastened to a vehicle body.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

Referring to FIG. 2, a strut type suspension 100 according to an embodiment of the present invention is connected between an axle and a body, and moves the wheels a predetermined distance in the front-rear direction of the vehicle, thereby improving ride comfort.

Such movement of the suspension is referred to as compliance, and the strut type suspension 100 is also referred to as a strut complex.

In addition, the present invention can be provided as a single vehicle equipped with the strut type suspension 100. [

A strut type suspension 100 according to an embodiment of the present invention includes a cylinder 110 and a shock absorber rod 120.

2, the strut type suspension 100 according to an embodiment of the present invention includes the spring 14, the upper pad 15, the bumper stopper 16, the strut bearing (not shown) 17 and a dust cover 18, as shown in Fig.

However, the strut type suspension 100 according to an embodiment of the present invention may be provided as a shock-shock absorber consisting of the cylinder 110 and the shock absorber rod 120.

The lower end of the cylinder 110 is connected to an axle and a fluid is filled therein.

The lower end of the shock absorber rod 120 may be inserted into the cylinder 110 and move up and down.

In addition, the upper end of the shock absorber rod 120 is connected to the vehicle body through an insulator for vibration isolation (see 200 in FIG. 2).

That is, the strut type suspension 100 according to one embodiment of the present invention supports the load between the vehicle body and the axle and absorbs vibration.

In addition, at the upper end of the shock absorber rod 120, at least one rotation preventing protrusion 121 for preventing the insulator 200 from rotating when the insulator 200 is coupled to the insulator 200 is formed.

In addition, the rotation preventing protrusion 121 projects laterally from the center c of the shock absorber rod 120.

In addition, in FIG. 2, it is assumed that the two rotation preventing protrusions 121 are formed facing each other in the opposite direction.

However, the number of the rotation preventing protrusions 121 is not particularly limited.

A bolt 122 is provided at a central portion of the upper end surface of the shock absorber rod 120 so that the bolt 122 can be fastened to a stationary nut As shown in Fig.

The diameter of the bolt portion 122 is preferably smaller than the diameter of the shock absorber rod 120.

In addition, the rotation preventing protrusions 121 are formed at the lower end of the bolt portion 122.

That is, the rotation preventing protrusions 121 are formed at the corners where the upper surface of the shock absorber rod 120 and the lower end of the bolt portion 122 meet.

It is preferable that the rotation preventing protrusions 121 are formed so as not to protrude laterally of the shock absorber rod 121. This prevents the rotation preventing protrusions 121 from being damaged during the assembly process .

In addition, the edge portion of the bolt portion 122 is not provided with the edge portion a for inserting the exclusive paper in comparison with the bolt portion b of the conventional shock absorber rod 11b.

That is, the function of the conventional corner portion (a) is performed by the anti-rotation protrusions 121, and the end section of the bolt portion 122 is circular.

3 and 4, a central portion of the insulator 200 is provided with a rod insertion hole 210 through which the bolt portion 122 is inserted and exposed upward, Protrusion insertion grooves 220 into which the rotation preventing protrusions 121 can be inserted are formed.

In other words, the rotation preventing protrusions 121 are inserted into the protrusion insertion groove 220 and the shock absorber rod 121 is not rotated by the insulator 200. Therefore, when the fixing nut 13 is fastened, There is no need for a dedicated paper for holding the shovel rod 121.

3 and 4, the protrusion insertion recess 220 has two protrusion insertion recesses 220 corresponding to the number of the rotation preventing protrusions 121. However, the number of the protrusion insertion recesses 220 is also limited none.

5, after the rotation preventing protrusions 121 are seated in the protrusion insertion groove 220, the shock absorber rod 120 and the insulator 200 ) Can be fastened with a strong tightening torque. Even if the disassembly and assembly are repeated, there is no worn portion, and the lowering of the tightening torque can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the present invention. Various changes and modifications will be possible.

100: strut type suspension 110: cylinder
120: Shock absorber rod 121: Anti-rotation projection
122: Bold part 200: Insulator
210: rod insertion hole 220: projection insertion hole

Claims (7)

A strut suspension which is connected between an axle and a vehicle body to improve a ride feeling by causing the wheels to move in a front and rear direction of the vehicle by a predetermined distance,
A cylinder connected to the axle; And
And a shock absorber rod having one end inserted into the cylinder and moving up and down and the other end fixed to the vehicle body via an insulator for vibration insulation,
And at the other end of the shock absorber rod, at least one anti-rotation protrusion protruding laterally from the center is formed so as not to rotate when the shock absorber is coupled to the insulator.
The method according to claim 1,
And a rod insertion hole through which the other end of the shock absorber rod can be inserted and inserted into the center of the insulator,
And a protrusion insertion groove into which the rotation preventing protrusion can be inserted is formed on an inner circumferential surface of the rod insertion hole.
3. The method of claim 2,
Wherein the rotation preventing protrusions are formed of two anti-rotation protrusions protruding in the opposite directions on the same straight line,
And the protrusion insertion groove is formed by two protrusion insertion grooves corresponding to the rotation preventing protrusion.
4. The method according to any one of claims 1 to 3,
A bolt portion integrally formed with a center of the other end surface of the shock absorber rod and having a diameter smaller than the diameter of the shock absorber rod and to which a fixing nut can be coupled,
And the rotation preventing protrusion is provided on the outer periphery of the lower end of the bolt portion.
5. The method of claim 4,
Wherein the rotation preventing protrusion is protruded to an upper portion of the other end surface of the shock absorber rod and is not protruded to the side of the outer circumference of the shock absorber rod.
5. The method of claim 4,
And the end section of the bolt section is circular.
A vehicle provided with a strut type suspension according to any one of claims 1 to 3 between an axle and a vehicle body.

KR1020150136476A 2015-09-25 2015-09-25 Strut suspension having structure for preventing rotation of shock absorber rod KR20170037215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150136476A KR20170037215A (en) 2015-09-25 2015-09-25 Strut suspension having structure for preventing rotation of shock absorber rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150136476A KR20170037215A (en) 2015-09-25 2015-09-25 Strut suspension having structure for preventing rotation of shock absorber rod

Publications (1)

Publication Number Publication Date
KR20170037215A true KR20170037215A (en) 2017-04-04

Family

ID=58588334

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150136476A KR20170037215A (en) 2015-09-25 2015-09-25 Strut suspension having structure for preventing rotation of shock absorber rod

Country Status (1)

Country Link
KR (1) KR20170037215A (en)

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E601 Decision to refuse application