• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an airtight structure of a shock absorber for a vehicle. The jaw bumper is fixed to the cylinder cap of the shock absorber to absorb the shock while moving the bump bumper together when moving by an external force. The object is to prevent foreign matter from entering the cylinder by the wrapped bumper bumper. According to the present invention for achieving the above object, the shock absorber constituting the suspension device is fixed to the knuckle of the wheel and is drawn out and inserted by an external force applied to the cylinder (1) filled with oil therein, and thus the vehicle body (6). The damper rod (2) is fastened to the strut insulator (7), which is fastened to the part, and the fastening brackets are padded to the cap (1a) of the cylinder (1) to the cylinder (1) and the rod (2). 10) the dust cover (9) to surround them through the medium to block foreign substances from the outside, and coupled to the fastening bracket (10) in the dust cover (9) while wrapping the damper rod (2) the vehicle body (6) It is characterized in that the bump bumper 8 is provided to alleviate and absorb the impact while contacting the site.
    公开号:KR20030066878A
    申请号:KR1020020006472
    申请日:2002-02-05
    公开日:2003-08-14
    发明作者:김성구
    申请人:현대자동차주식회사；
    IPC主号:
    专利说明:

    Sealing structure of shocl absorber in vehicle
    [9] The present invention relates to a gas tight structure of a vehicle shock absorber, and more particularly, to a gas tight structure of a vehicle shock absorber that can completely block the foreign matter flowing into the cylinder that is reciprocated to be compressed and compressed in accordance with the impact applied.
    [10] In general, the suspension of the vehicle is connected to the axle and the body so that the vibration or shock received from the road surface is not directly transmitted to the body while driving, thereby preventing damage to the body and cargo and improving ride comfort. It is composed of a chassis spring to relax, a shock absorber to control the free vibration of the chassis spring to improve ride comfort, and a stabilizer to prevent rolling of the vehicle.
    [11] Here, the chassis spring is installed between the vehicle body and the wheel to absorb the shock and vibration of the wheel transmitted from the road surface while driving so as not to be transmitted to the vehicle body, the metal spring has a leaf spring, coil spring and torsion bar spring, Rubber springs and air springs are also used.
    [12] And the shock absorber is to absorb the natural vibration generated by the impact of the spring while driving the vehicle to quickly attenuate the vibration to improve the ride comfort, and to change the up and down kinetic energy into thermal energy, according to the method of solid friction Although there are a formula and a hydraulic type, in general, a hydraulic type is generally used, and in operation, there are a single-acting type that exerts a reducing force during stretching and a double-acting type that exerts a damping force for both stretching and compression.
    [13] On the other hand, the stabilizer does not work when both ends are mounted on the left and right lower suspension arms and the left and right wheels move up and down at the same time, but when the left and right wheels move up and down, they are twisted and spring restoring force is generated. It is responsible for reducing the slope.
    [14] The suspension is divided into a front suspension and a rear suspension according to the mounting portion of the vehicle, and the axle suspension type that connects the axle-type front axle connected to the axle with the left and right wheels to one axle with a spring, and both left and right sides. As it is installed on the car body to operate independently of the wheels, it is divided into an independent suspension type that has a light load of spring, good ride comfort and excellent grounding and controllability.
    [15] Wherein the front suspension is connected to the frame and the axle to support the weight of the car while absorbing the vibration of the wheel, according to the type of the front axle is divided into axle suspension expression and independent suspension expression, the importance of riding comfort or maneuverability Many independent cars are used for passenger cars, while axle cars are used for buses and trucks.
    [16] In addition, the independent suspension is provided with two upper and lower suspension arms of the V-shape to the frame by the shaft, and the end of each suspension arm is mounted on the knuckle by the ball joint, and the life spring is installed horizontally up or down Horizontal spring type with spring acting as the lower suspension arm, trailing link type supporting wheels by one or two arms toward the rear of the car, simpler structure and more In addition to being small, there is a McPherson type that has good road holding and riding comfort.
    [17] Here, the McPherson-type (strut type) suspension device is composed of a strut and a suspension arm, a bow joint and a spring connecting the lower arm of the strut arm and the strut with the shock absorber and integrally connected with the knuckle. The lower part is fastened to the knuckle through the mounting bracket, while the upper part of the strut is fitted to the insulator through the bearing so as to be fastened relative to the vehicle body and supported.
    [18] That is, as shown in Fig. 1, the strut suspension system includes a cylinder 1 of a shock absorber, one end of which is mounted to the knuckle, and an upper and lower spring seats 3 and 4, which are fitted to the outer circumference of the cylinder 1; It consists of a coil spring (5) and a strut insulator (7) for fastening the upper portion of the damper rod (2) to the vehicle body (6) mounted via a medium, the outer part of the cylinder (1) and damper rod (2) The dust cover 9 is padded through the fastening bracket 10 to prevent the inflow of foreign matters from the inside, and the upper part of the rod 2 is wrapped in the dust cover 9 to contact the cylinder 1. And a bump bumper 8 for reinforcing the roll rigidity of the vehicle while absorbing and buffering the impact is provided.
    [19] Here, the coil spring 5 is inserted and supported at predetermined offset angles between the upper and lower spring seats 3 and 4 so as to appropriately absorb and mitigate the shocks received while the vehicle is traveling.
    [20] The impact relief of such a strut type suspension device is shown in FIG. 1 as the damper rod 2 of the shock absorber is inserted into the cylinder 1 fixed to the knuckle portion together with the compression and tension of the spring 5. The portion of the cap 1a of the cylinder 1 moves from the initial position to the movement position and contacts the end of the bump bumper 8 to mitigate the impact.
    [21] At this time, the impact applied by the oil filled in the cylinder (1) is of course absorbed.
    [22] However, when the shock absorber continually applied as the vehicle travels and absorbs and buffers the shock absorber cylinder 1 and the damper rod 2 while moving, the dust cover 9 covering these parts is also contracted and pulled. As a result, the dust cover 9 which is mainly made of rubber material hardens and is often broken, and foreign matters are introduced and accumulated from the outside through the cap 1a of the cylinder 1. There is a problem and a disadvantage.
    [23] Accordingly, the present invention has been invented in view of the above points, and the round bumper is fixed to the cylinder cap of the shock absorber to absorb shock while moving the bump bumper together when moving by external force, and the cylinder cap part when the dust cover is broken. The object of the present invention is to prevent foreign matter from entering the cylinder by the bumper wrapped around the cylinder.
    [24] The present invention for achieving the above object, the shock absorber constituting the suspension device is fixed to the knuckle and is inserted into and inserted by the external force applied to the cylinder filled with oil therein to the strut insulator portion fastened to the vehicle body Consists of a damper rod to be fastened, the cylinder and the rod portion is surrounded by a fastening bracket padded by a cap portion of the cylinder to cover the dust cover to block foreign substances flowing from the outside, and coupled to the fastening bracket in the dust cover It is characterized in that it is provided with a bumper bumper to dampen and absorb the shock while contacting the body portion while wrapping the damper rod.
    [1] 1 is an airtight configuration diagram of a vehicle shock absorber according to the prior art
    [2] 2 is an airtight configuration diagram of an upper portion of a vehicle shock absorber according to the present invention.
    [3] <Description of the symbols for the main parts of the drawings>
    [4] 1: Cylinder 1a: Cap
    [5] 2: damper rod 3,4: upper and lower spring seat
    [6] 5: spring 6: body
    [7] 7: Insulator 8: bumper bumper
    [8] 9: dust cover 10: tightening bracket
    [25] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    [26] Figure 2 shows the airtight configuration of the upper portion of the shock absorber for a vehicle according to the present invention, the coil spring (5) is provided via the upper and lower spring seats (3,4) while forming the suspension device of the present invention. One end of the absorber is fixed to the knuckle and the other end is received and applied to the cylinder 1 while the one end is fastened to the cylinder 1 filled with oil and the strut insulator 7 fastened to the vehicle body 6. The damper rod 2 is drawn out and inserted by an external force, and one end is fixed to the capping bracket 10 of the cylinder 1 and the other end is fixed to the insulator 7 part. While the dust cover 9 is fastened to the damper rod 2, the damper rod 2 is coupled to the fastening bracket 10 in the dust cover 9, and comes into contact with the vehicle body 6, thereby alleviating and absorbing shocks. Enclosed bumper bumper (8) to strengthen the rigidity All.
    [27] Hereinafter, the operation of the present invention will be described in detail with reference to the accompanying drawings.
    [28] According to the present invention, when the external force is applied as described above, the damper rod 2 of the shock absorber is inserted into the cylinder 1 fixed to the knuckle portion together with the compression and tension of the spring 5, that is, the vehicle body 6 The lower portion of the cap (1a) of the cylinder (1) is moved from the initial position to the moving position so as to be lower, accordingly, the jaun coupled to the cap (1a) of the cylinder (1) via a fastening bracket (10) The upper end of the bumper 8 comes into contact with the insulator 7 portion on the vehicle body 6 side to mitigate the impact.
    [29] At this time, the impact applied by the oil filled in the cylinder (1) is of course absorbed.
    [30] On the other hand, when the cylinder (1) and the damper rod (2) constituting the shock absorber moves up and down reciprocated according to the applied external force, the dust cover (9) fixed to the cylinder (1) via a fastening bracket (10) Is continuously contracted and stretched according to the reciprocating up and down movement of the cylinder (1), which causes the dust cover (9) to cure and breakage, but the present invention is a fastening bracket for fixing the dust cover (9) (10) surrounds the cap (1a) of the cylinder (1) to seal the cylinder (1) and the damper rod (2) portion first, in addition to the bumper bumper (8) wraps the damper rod (2) It is padded onto the fastening bracket 10 to seal the cylinder 1 and the damper rod 2 in a secondary manner to maintain the external airtightness.
    [31] That is, even if the dust cover 9 is damaged and foreign matter flows into the cylinder 1 and the damper rod 2, the damper rod 2 surrounds the cap 1a of the cylinder 1. The bumper bumper 8 wrapped around the outer circumference thereof completely blocks the inflow of foreign matter into the cylinder 1, thereby improving the durability of the shock absorber.
    [32] As described above, according to the present invention, the bumper bumper which increases the roll rigidity of the vehicle while primarily sealing the up and down moving parts of the shock absorber cylinder and the damper rod through a fastening bracket for fixing the dust cover. Is fixed to the fastening bracket and surrounds the outer surface of the damper rod, so that the bumper bumper moves together when the vehicle is moved by the external force applied while driving the vehicle to absorb the shock and wraps the cylinder cap area when the dust cover is damaged. Foreign matter does not flow into the cylinder from the outside, thereby improving the durability of the shock absorber.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] With a damper rod (2) fastened to the part of the strut insulator (7) fastened to the vehicle body (6) while being drawn out and inserted by an external force applied to the cylinder (1) filled with oil therein and fixed to the knuckle of the wheel. The dust cover 9 is formed on the cylinder 1 and the rod 2 to surround them by a fastening bracket 10 padded by the cap 1a of the cylinder 1 to block foreign substances from the outside. And a bumper bumper 8 coupled to the fastening bracket 10 in the dust cover 9 to surround the damper rod 2 and contacting the vehicle body 6 to cushion and absorb shocks. Airtight structure of vehicle shock absorber.
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR100440323B1|2004-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-02-05|Application filed by 현대자동차주식회사
    2002-02-05|Priority to KR20020006472A
    2003-08-14|Publication of KR20030066878A
    2004-07-15|Application granted
    2004-07-15|Publication of KR100440323B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR20020006472A|KR100440323B1|2002-02-05|2002-02-05|Sealing structure of shocl absorber in vehicle|
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