KR20160050641A - structure for reducing friction of leaf spring for vehicle - Google Patents

structure for reducing friction of leaf spring for vehicle Download PDF

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Publication number
KR20160050641A
KR20160050641A KR1020140149241A KR20140149241A KR20160050641A KR 20160050641 A KR20160050641 A KR 20160050641A KR 1020140149241 A KR1020140149241 A KR 1020140149241A KR 20140149241 A KR20140149241 A KR 20140149241A KR 20160050641 A KR20160050641 A KR 20160050641A
Authority
KR
South Korea
Prior art keywords
steel plate
leaf spring
friction
friction member
present
Prior art date
Application number
KR1020140149241A
Other languages
Korean (ko)
Inventor
김형석
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 KR1020140149241A priority Critical patent/KR20160050641A/en
Publication of KR20160050641A publication Critical patent/KR20160050641A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F16F1/26—Attachments or mountings
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/04—Friction

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

Abstract

According to the present invention, there is provided a seat for a vehicle comprising: a seating groove portion for seating a friction member on a bottom surface of a steel plate to hold a friction member separated from the leaf spring; and a vehicle suspension member for preventing a friction member from being separated from the leaf spring, The present invention relates to a leaf spring friction preventing structure of a device,
And a second plate (12) having a hole (12a) formed therein, wherein the first plate (11) has a seating groove (11a) A hinge portion 20 which is supported by a body frame (not shown) and rotates the leaf spring 10; a hinge portion 20 fixed to the first steel plate seating groove portion 11a of the leaf spring 10, And a friction member 30 that prevents friction, noise, and deviation while the protrusion 30a is engaged with the hole 12a of the second steel plate 12 to maintain a predetermined distance a2.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leaf spring friction prevention structure for a vehicle suspension,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leaf spring structure of a vehicular suspension device, more specifically, to prevent friction between leaf springs and to prevent misalignment due to torsion.

In general, all the vehicles are equipped with a suspension device for ride comfort of the vehicle. The suspension device connects the axle and the frame and absorbs the vibration or shock from the road surface while driving to improve ride comfort and stability of the vehicle, When the braking force is transmitted to the frame, when turning, it will overcome the centrifugal force so that the vehicle body is in the correct position.

FIG. 1 is a perspective view of a general leaf spring, and FIG. 2 is a cross-sectional view of a main portion of a general leaf spring.

As shown in Fig. 1 or Fig. 2, the configuration of a general leaf spring is provided in the front and rear of the vehicle, absorbing the impact force of the wheels while transmitting power from the engine to the wheels, A hinge portion 2 whose one end is supported by the vehicle body frame (not shown) to rotate the leaf spring 1; And a frictional member 4 for preventing friction between each of the steel plates 1a of the leaf spring 1. The fixing clip 3 is provided with a fixing clip 3 for holding the fixing clip 3 so as to be aligned,

The action of the plate spring anti-friction structure of a general vehicular suspension device having the above-described structure is as follows.

Generally, a large vehicle is formed in such a manner that the wheels on both sides are connected to each other by an axle, and leaf springs 1 are attached to both sides of the axle, and both ends of the leaf spring 1 are connected to a vehicle body frame (not shown) The hinge (2) is engaged to absorb the impact from the wheel. At this time, the steel plates 1a of the leaf spring 1 are fixed by the fixing clip 3.

The plate spring 1 is formed in a groove portion 1b formed in the steel plate 1a so as to maintain a predetermined distance a1 in order to catch friction and noise generated between the steel plate 1a and the steel plate 1a A predetermined distance a1 is maintained by inserting the friction member 4 formed with the circular protrusion 4a.

However, the frictional member of the leaf spring 1 having such a structure has a problem that the frictional member 4 is detached or damaged from the leaf spring 1 when the frictional member 4 is pivoted to the left or right, unlike the case where the frictional member is vertically impacted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a seating groove portion for seating a friction member on a bottom surface of a steel plate to hold a friction member separated from a leaf spring.

As a means for achieving the above object, the structure of the present invention is characterized in that a layer is formed by a steel plate absorbing impact force of a vehicle wheel, a seating groove is formed in a lower portion of the first steel plate, A hinge portion which is supported by the body frame and rotates the plate spring; a hinge portion which is fixed to the first steel plate seating groove portion of the leaf spring, and the circular protrusion is engaged with the second steel plate hole, And a friction member for preventing noise and deviation.

The structure of the present invention is preferably such that the seating groove portion of the first steel plate is formed as a circular arc in the longitudinal direction of the steel plate,

The constitution of the present invention is preferably such that the above-mentioned second steel sheet has two or more holes

The configuration of the present invention is preferably such that the number of the circular protrusions of the friction member is two or more

The constitution of the present invention is preferably such that five or less circular protrusions are formed on the upper surface of the above-mentioned friction member

The constitution of the present invention is preferable if a protrusion is formed in the longitudinal direction on the upper surface of the above-mentioned friction member

According to the present invention, a seating groove portion for seating a friction member on the bottom surface of the steel plate for holding a friction member separated from the leaf spring is formed to prevent the friction member from being detached from the plate spring even when the vehicle is rocked, It is effective to reduce the parts and reduce the cost.

1 is a schematic perspective view of a general leaf spring.
Fig. 2 is a cross-sectional view of a main portion of a general leaf spring.
3 is a view showing a leaf spring anti-friction structure of a vehicle suspension according to a first embodiment of the present invention.
4 is a cross-sectional view of the main part of the plate spring anti-friction structure of the vehicular suspension device according to the first embodiment of the present invention.
5 is a sectional view taken along line AA in Fig.
6 is a perspective view of a leaf spring anti-friction structure of a vehicle suspension according to a second embodiment of the present invention.
7 is a perspective view of a plate spring anti-friction structure of a vehicle suspension according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. Other objects, features, and operational advantages of the present invention, including the object, function, and effect, will become more apparent from the description of the preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not to be construed as limiting the scope of the invention. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities, many of which are within the scope of the present invention.

Also, terms and words used in the description and claims of the present invention are defined based on the principle that the inventor can properly define the concept of a term in order to explain its invention in the best way, And should not be construed as limited to only the prior art, and should be construed in a meaning and concept consistent with the technical idea of the present invention. For example, the terms relating to directions are set on the basis of the position represented on the drawing for convenience of explanation.

FIG. 3 is a view showing a leaf spring anti-friction structure of a vehicle suspension according to a first embodiment of the present invention, FIG. 4 is a cross- And FIG. 5 is a cross-sectional view taken along line AA in FIG.

3 to 5, the structure of the leaf spring anti-friction structure of the vehicle suspension according to the first embodiment of the present invention absorbs the impact force of the vehicle wheel and functions as a buffer, A plate spring 10 having a seating groove 11a formed under the first steel plate 11 and having a hole 12a formed in the second steel plate 12 and a plate spring 10 supported by the vehicle body frame A hinge portion 20 for rotating the leaf spring 10 and a circular protrusion 30a fixed to the first steel plate seating groove portion 11a of the leaf spring 10 and having a circular protrusion 30a formed in the hole 12a of the second steel plate 12 And a friction member (30) for preventing friction, noise, and separation is formed while maintaining a predetermined gap (a2).

The operation of the leaf spring anti-friction structure of the vehicle suspension according to the first embodiment of the present invention with the above-described structure is as follows.

The leaf springs 10 are respectively fastened to both sides of the axle so that both ends of the leaf spring 10 are engaged with the vehicle body frame (not shown) and the hinge 20 to absorb the impact from the wheels.

The plate spring 10 has a seat groove 11a formed on the bottom surface of the first steel plate 11 and formed as a circular arc 11b at both ends in the longitudinal direction of the steel plate, ) Is formed so that it can move forward and backward in the buffering action while holding the twist in the left and right.

A circular protrusion 30a is formed on the bottom surface of the friction member 30 and inserted and fixed in a hole 12a formed in the second steel plate 12. [ The upper portion of the friction member 30 is coupled to the seating groove 11a of the first steel plate 11 and the lower portion of the friction member 30 is coupled to the hole 12a of the second steel plate 12 .

6 is a perspective view of a leaf spring anti-friction structure of a vehicle suspension according to a second embodiment of the present invention.

6, the structure of the plate spring anti-friction structure of the vehicle suspension according to the second embodiment of the present invention is such that the upper part of the friction member 40 is formed with the circular projection 41, (Not shown) of the steel plate. Except for the circular protrusion 41 formed on the upper portion of the friction member 40, the construction and operation of the first embodiment are similar to those of the first embodiment.

7 is a perspective view of a plate spring anti-friction structure of a vehicle suspension according to a third embodiment of the present invention.

7, the structure of the plate spring anti-friction structure of the vehicular suspension device according to the third embodiment of the present invention is such that a protruding step 51 is formed on an upper portion of the friction member 50, (Not shown) of the steel plate. The operation of the second embodiment is the same as that of the first embodiment except for the protrusion 51 formed on the upper portion of the friction member 50.

10: leaf spring 11, 12: first and second steel plates
20: hinge 30: friction member

Claims (6)

A plate spring for absorbing an impact force of a vehicle wheel and acting as a buffer to form a layered layer on the steel plate, a seat groove formed on a lower portion of the first steel plate,
A hinge portion supported by the vehicle body frame to rotate the leaf spring,
And a friction member fixed to the first steel plate seating groove portion of the leaf spring and coupled to the second steel plate hole to prevent friction, noise, and deviation while maintaining a predetermined gap therebetween. Spring anti-friction structure. The method according to claim 1,
Wherein the seating groove portion of the first steel plate is formed as a circular arc in the longitudinal direction of the steel plate, and a latching protrusion is formed on a side surface thereof. The method according to claim 1,
Wherein the second steel plate has at least two holes. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
Wherein the circular protrusion of the friction member is formed of two or more pieces. The method according to claim 1,
Characterized in that five or less circular protrusions are formed on the upper surface of the friction member. The method according to claim 1,
Wherein a protrusion is formed on an upper surface of the friction member in the longitudinal direction.
KR1020140149241A 2014-10-30 2014-10-30 structure for reducing friction of leaf spring for vehicle KR20160050641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140149241A KR20160050641A (en) 2014-10-30 2014-10-30 structure for reducing friction of leaf spring for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140149241A KR20160050641A (en) 2014-10-30 2014-10-30 structure for reducing friction of leaf spring for vehicle

Publications (1)

Publication Number Publication Date
KR20160050641A true KR20160050641A (en) 2016-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140149241A KR20160050641A (en) 2014-10-30 2014-10-30 structure for reducing friction of leaf spring for vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112833121A (en) * 2019-11-25 2021-05-25 现代自动车株式会社 Muffler for a leaf spring of a commercial vehicle, vehicle and related method of muffler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112833121A (en) * 2019-11-25 2021-05-25 现代自动车株式会社 Muffler for a leaf spring of a commercial vehicle, vehicle and related method of muffler

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