KR20130135492A - Suspension apparatus for vehicle and lower spring seat used for the apparatus - Google Patents

Suspension apparatus for vehicle and lower spring seat used for the apparatus Download PDF

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Publication number
KR20130135492A
KR20130135492A KR1020120059093A KR20120059093A KR20130135492A KR 20130135492 A KR20130135492 A KR 20130135492A KR 1020120059093 A KR1020120059093 A KR 1020120059093A KR 20120059093 A KR20120059093 A KR 20120059093A KR 20130135492 A KR20130135492 A KR 20130135492A
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KR
South Korea
Prior art keywords
spring
pad
vehicle
shock absorber
lower spring
Prior art date
Application number
KR1020120059093A
Other languages
Korean (ko)
Inventor
송탁선
문세진
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020120059093A priority Critical patent/KR20130135492A/en
Publication of KR20130135492A publication Critical patent/KR20130135492A/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
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • 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
    • B60G2206/012—Hollow or tubular elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The present invention relates to a suspension device for vehicles and a lower spring seat for the same to prevent damage to a spring by improving the structure of a lower spring seat for supporting a spring included in a suspension device. The suspension device for vehicles comprises a shock absorber between a vehicle body and an axel; a spring outside the shock absorber; and upper and lower spring seats for supporting the top and bottom of the spring. According to the present invention, the suspension device for vehicles stays in touch with the spring when the spring is maximally extended; and includes an elastic pad in order to be compressed with the spring.

Description

Suspension device for vehicle and lower spring seat used for vehicle suspension device {SUSPENSION APPARATUS FOR VEHICLE AND LOWER SPRING SEAT USED FOR THE APPARATUS}

The present invention relates to a vehicle suspension device, and more particularly, to a vehicle suspension device and a vehicle suspension device which can prevent damage to a spring by improving a lower spring seat for supporting a spring included in the suspension device. Relates to a lower spring seat.

The vehicle suspension device is provided between the vehicle body and the axle to absorb vibration and impact energy transmitted from the road surface while the vehicle is running, and serves to suppress damage to the vehicle body and to improve ride comfort of the vehicle.

To this end, the suspension device for a vehicle includes a spring for mitigating an impact received from a road surface, and a shock absorber for suppressing free vibration of the spring to improve ride comfort. The springs and shock absorbers complement each other to provide a more comfortable ride for the occupant.

More specifically, the spring absorbs the shock caused by the vibration when the vehicle body vibrates up and down greatly by the curvature of the road surface, and the shock absorber provides the spring with a resistance to stop the vibration of the spring.

In general, a suspension device for a vehicle is provided with a separate upper spring seat on a bearing-mounted upper mount, and the upper spring seat and a lower spring seat provided on a cylinder of the shock absorber support both ends of the coil spring.

The suspension device according to the prior art usually includes a shock absorber and a spring provided on the outside of the shock absorber.

The shock absorber includes a cylinder and a piston rod into which one side is inserted into the cylinder, and a piston valve or the like is provided in the piston rod inside the cylinder.

Such a shock absorber is usually fixed at the top of the piston rod to the body side and the bottom of the cylinder is fixed to the wheel side. For this purpose, a top mount is provided at the top of the piston rod and a knuckle bracket is provided at the bottom of the shock absorber to be connected to the axle. do.

The spring, together with the shock absorber, damps vibration and shock, and is formed by spirally winding a thick steel wire. When a force is applied from the outside and the shock absorber is compressed, the spring is compressed together and, after being compressed, is restored by the elastic force.

Upper and lower spring seats are provided above and below the springs to accommodate and support the springs. The lower spring seat is normally fixed to the cylinder outer surface of the shock absorber, and the upper spring seat is engaged with the end of the piston rod.

As shown in FIG. 1, the lower spring seat 3 according to the prior art has a substantially circular plate shape, and an opening in which the cylinder 1 of the shock absorber is fitted and fixed by welding or the like is approximately one side at the center or center. It is formed in a position biased to.

The lower spring seat 3 according to the prior art has a spring seating portion 4 which is formed in a circular shape, and when the spring is compressed or stretched over a portion of the spring seating portion 4, the spring 2 rests on the lower spring seat. The separation prevention part 5 is formed so that it may not leave (3). Departure preventing portion 5 is formed on the outer peripheral edge portion of the lower spring sheet is formed convex to surround the spring (2) from the outside.

The contact area between the lower spring seat 3 and the spring 2 configured as described above is increased during the compression operation of the spring 2 and decreases during the expansion operation, where the spring is contacted or spaced apart during the compression or expansion operation. If foreign matter such as sand, gravel, calcium chloride, etc. gets caught on the surface of the spring, the wound may be corroded and the spring may be broken.

In particular, the portion where the spring is in contact with or spaced apart from the lower spring seat during the compression or extension operation of the spring 2 is also the portion where the greatest stress is applied (approximately 0.8 vol from the lower end of the spring) as a result of the load analysis. It is also the highest part.

However, in the related art, since the spring 2 is supported only in the outward direction so that the spring 2 does not deviate from the lower spring seat 3 laterally, foreign matter is prevented from interfering between the spring and the lower spring seat during the operation of the spring. There is a need for research and development on how to do this.

The present invention for solving these problems, by improving the lower spring seat for supporting the spring included in the suspension to prevent the spring from being separated from the lower spring seat during operation to prevent the phenomenon of foreign matter caught and damage the spring It is to provide a vehicle suspension device and a lower spring seat used in the vehicle suspension device to prevent the.

According to an aspect of the present invention for achieving the above object, a shock absorber installed between the vehicle body and the axle, a spring installed outside the shock absorber, and the upper and lower spring seat for supporting the upper and lower parts of the spring In the vehicle suspension comprising a, wherein the lower spring seat, it is possible to maintain a state in contact with the spring even when the maximum extension of the spring includes a pad having an elastic so that it can be compressed together when the spring is compressed There is provided a vehicle suspension.

The pad includes a seating groove in which the spring is seated, and a separation prevention part formed at an outer edge to surround the spring from the outside, and the spring is press-fitted into the seating groove.

The pad preferably includes a hollow portion in the inner or bottom surface.

The pad preferably includes a foreign material discharge portion which is formed to be concave inward or outward to facilitate the discharge of the foreign matter.

The lower spring sheet preferably includes a depression formed in a direction away from the spring to increase the distance between the spring and the portion where the pad is not located.

In addition, according to another aspect of the present invention, as a lower spring seat seating the lower end of the spring of the vehicle suspension device comprising a shock absorber provided between the vehicle body and the axle, and a spring installed outside the shock absorber, The lower spring seat of the vehicle suspension is provided, characterized in that it includes a pad which is elastic so that it can be kept in contact with the spring even when the spring is fully extended and can be compressed together when the spring is compressed.

According to the present invention as described above, the vehicle suspension and the lower spring used in the suspension of the vehicle so that the spring is not separated from the lower spring seat during operation by improving the lower spring seat for supporting the spring included in the suspension Sheets may be provided.

Accordingly, according to the vehicle suspension device and the lower spring seat used in the vehicle suspension device according to the present invention, it is possible to prevent the phenomenon of foreign matter caught between the spring and the lower spring seat, thereby preventing damage to the spring. Will be.

1 is a perspective view showing a lower spring sheet of the suspension according to the prior art,
2 is a perspective view of the lower spring sheet of the suspension device according to the present invention as viewed obliquely from above;
3 is a rear view of the pad mounted to the upper surface of the lower spring sheet of the suspension according to the present invention;
Figure 4 is a perspective view showing a state in which the spring is seated on the lower spring seat of the suspension according to the invention, and
Figure 5 is another perspective view showing a state in which the spring is seated on the lower spring seat of the suspension according to the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the vehicle suspension apparatus which concerns on a preferable embodiment of this invention, and the lower spring seat used for this vehicle suspension apparatus are demonstrated in detail with reference to drawings.

Suspension for a vehicle according to the present invention, as in the prior art, includes a spring for mitigating the impact received from the road surface, and a shock absorber for suppressing the free vibration of the spring to improve the ride comfort.

The shock absorber includes a cylinder, a piston rod having one side inserted into the cylinder, and a piston valve provided at the lower end of the piston rod in the cylinder to generate a damping force. Such a shock absorber is usually fixed at the top of the piston rod to the body side and the bottom of the cylinder is fixed to the wheel side. For this purpose, an upper mount is provided at the top of the piston rod and a knuckle bracket is connected to the axle at the bottom of the shock absorber. It is provided.

The spring is generally supported at both ends by an upper spring seat provided on an upper mount on which bearings are mounted, and a lower spring seat fixed outside the cylinder of the shock absorber. The spring, together with the shock absorber, damps vibration and shock, and is formed by spirally winding a thick steel wire. When a force is applied from the outside and the shock absorber is compressed, the spring is compressed together and, after being compressed, is restored by the elastic force.

2, 4 and 5, the lower spring sheet 10 according to the present invention has an approximately circular plate shape, the opening of the cylinder (not shown) of the shock absorber is inserted and fixed by welding or the like ( 11) is formed at a position inclined to one side from the central portion or the center.

The opening 11 may have a circular shape and a shape in which the concave portion 11a is formed at one or more places as shown in FIG. 2 so that foreign matter can be easily discharged by forming a gap between the cylinder and the cylinder. May have

An upper surface of the lower spring seat 10 is mounted with an approximately arc-shaped pad 20 so as to be interposed between the spring 2. The pad 20 is formed with a seating groove 21 on which the spring 2 is seated, and an anti-separation part 22 is formed on the outer edge of the pad 20 so as to surround the spring 2 from the outside. The departure prevention part 22 may be formed over the entire section of the pad 20 or over a partial section.

The pad 20 is preferably made of a material having elasticity so that it can remain in contact with the spring 2 even when the spring 2 is fully extended, and can be compressed together when the spring 2 is compressed. According to the present invention, since the pad 20 continues to be in contact with the spring 2 during the compression and extension operation of the spring, foreign matter can be prevented from penetrating between the spring and the lower spring seat 10. have. In other words, according to the present invention, the spring 2 is compressed and stretched in a state in which the spring 2 is pressed into the pad 20, more specifically, the seating groove 21 of the pad.

Accordingly, even when the spring 2 is disposed on the lower spring seat 10 for assembling the suspension device, the lower end of the spring 2 is press-fitted into the seating groove 21 formed in the pad 20, thereby causing errors in spring assembly. It is possible to significantly reduce the occurrence, thereby preventing the occurrence of problems such as tilting of the vehicle and distribution of characteristics.

As shown in FIG. 3, it is preferable that the hollow part 23 is formed in the inner or bottom surface of the pad 20 so that the pad 20 can be easily compressed together when the spring 2 is compressed. 3 shows that the plurality of hollow portions 23 are formed spaced apart from each other on the bottom surface of the pad 20, this is only an example.

The inside and outside of the pad 20 is formed with a concave foreign matter discharge portion (24, 25) for facilitating the discharge of foreign matter when the foreign matter penetrates. In FIG. 2, one inner foreign matter discharge portion 24 is formed at an approximately middle portion of the pad length, and two outer foreign matter discharge portions 25 are formed at intervals from each other, but the present invention is not limited thereto. Does not.

Referring again to FIGS. 2, 4 and 5, the spring 2 and the lower spring sheet 10 are formed in some portions of the lower spring sheet 10 by forming the depressions 12 away from the spring 2. By increasing the interval therebetween, it is possible to reduce the risk of foreign matter caught between the lower spring sheet 10 and the spring 2 in the portion where the arc-shaped pad 20 is not located.

At least one through-hole 13 is formed in a portion where the depression 12 of the lower spring sheet 10 is formed and a portion of the lower spring sheet 10 where the foreign matter discharge portions 24 and 25 of the pad 20 are located. It is desirable that the foreign matter can be easily removed.

In assembling the lower spring seat 10 and the pad 20, one or more protrusions 26 on the lower surface of the pad 20 so that the pad 20 can be accurately positioned in place on the lower spring seat 10. 3 (see FIG. 3) may be formed and an insertion hole (not shown) may be formed in a corresponding portion of the lower spring sheet 10.

As described above, the suspension device and the lower spring sheet of the suspension device according to the present invention have been described with reference to the illustrated drawings. However, the present invention is not limited to the embodiments and drawings described above, but within the claims. Various modifications and variations can be made by those skilled in the art to which the present invention pertains.

2: spring 10: lower spring seat
11 opening 11a recess
12 recessed portion 13 through hole
20: pad 21: seating groove
22: departure prevention part 23: hollow part
24: inside foreign matter discharge portion 25: outside foreign matter discharge portion
26: projection

Claims (6)

In a vehicle suspension comprising a shock absorber provided between the vehicle body and the axle, a spring installed outside the shock absorber, and upper and lower spring seats supporting upper and lower portions of the spring,
The lower spring seat, the suspension device for a vehicle characterized in that it comprises a pad having an elastic so that even when the spring is in maximum contact with the spring can be maintained in contact with the spring is compressed together. The method according to claim 1,
The pad includes a seating groove in which the spring is seated, and a separation prevention portion formed at an outer edge to surround the spring from the outside.
Suspension device for a vehicle, characterized in that the spring is pressed into the seating groove. The method according to claim 1,
The pad is a vehicle suspension, characterized in that it comprises a hollow portion on the inner or bottom surface. The method according to claim 1,
The pad is a vehicle suspension, characterized in that it comprises a foreign material discharge portion is formed concave inward or outward to facilitate the discharge of foreign matter. The method according to claim 1,
The pad has an arc shape,
And the lower spring seat includes a depression formed in a direction away from the spring to increase a distance between the spring in a portion where the pad is not located. A lower spring seat on which a lower end of the spring of a suspension device for a vehicle includes a shock absorber installed between a vehicle body and an axle, and a spring installed outside the shock absorber.
The lower spring seat of the vehicle suspension, characterized in that it comprises a pad which is elastic so that it can be kept in contact with the spring even when the spring is fully extended and can be compressed together when the spring is compressed.
KR1020120059093A 2012-06-01 2012-06-01 Suspension apparatus for vehicle and lower spring seat used for the apparatus KR20130135492A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020120059093A KR20130135492A (en) 2012-06-01 2012-06-01 Suspension apparatus for vehicle and lower spring seat used for the apparatus

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101635809B1 (en) 2016-04-01 2016-07-21 대원강업주식회사 Coil spring pad using for vehicle suspension
KR20160116708A (en) * 2015-03-31 2016-10-10 현대자동차주식회사 Spring seat assembly of suspension apparatus for vehicle
KR20170078059A (en) * 2015-12-29 2017-07-07 현대모비스 주식회사 Suspension apparatus for an automobile
KR20170086955A (en) * 2016-01-19 2017-07-27 현대자동차주식회사 Insert type spring sheet
KR101882334B1 (en) * 2017-05-29 2018-07-26 주식회사 디엠씨 Spring pad for automotive suspension device with improved function to prevent foreign matter
KR102037297B1 (en) * 2018-05-09 2019-10-29 주식회사 현대포리텍 dust cover for suspension device of vehicle
KR102064839B1 (en) * 2018-08-27 2020-03-02 주식회사 디엠씨 Spring seat assembly for a vehicle suspension system with enhanced function of preventing the entry of foreign matter
KR102416796B1 (en) * 2021-03-04 2022-07-05 대원강업주식회사 Plastic Lower Seat for Car Suspension

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160116708A (en) * 2015-03-31 2016-10-10 현대자동차주식회사 Spring seat assembly of suspension apparatus for vehicle
KR20170078059A (en) * 2015-12-29 2017-07-07 현대모비스 주식회사 Suspension apparatus for an automobile
KR20170086955A (en) * 2016-01-19 2017-07-27 현대자동차주식회사 Insert type spring sheet
KR101635809B1 (en) 2016-04-01 2016-07-21 대원강업주식회사 Coil spring pad using for vehicle suspension
WO2017171154A1 (en) * 2016-04-01 2017-10-05 대원강업주식회사 Coil spring pad for vehicle suspension system
US20180313421A1 (en) * 2016-04-01 2018-11-01 Daewon Kang Up Co., Ltd. Coil spring pad for vehicle suspension system
US10465761B2 (en) 2016-04-01 2019-11-05 Daewon Kang Up Co., Ltd. Coil spring pad for vehicle suspension system
KR101882334B1 (en) * 2017-05-29 2018-07-26 주식회사 디엠씨 Spring pad for automotive suspension device with improved function to prevent foreign matter
KR102037297B1 (en) * 2018-05-09 2019-10-29 주식회사 현대포리텍 dust cover for suspension device of vehicle
KR102064839B1 (en) * 2018-08-27 2020-03-02 주식회사 디엠씨 Spring seat assembly for a vehicle suspension system with enhanced function of preventing the entry of foreign matter
KR102416796B1 (en) * 2021-03-04 2022-07-05 대원강업주식회사 Plastic Lower Seat for Car Suspension

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