KR19980061279A - Shock Absorber in Automobile Bumper - Google Patents

Abstract

The present invention relates to a shock absorbing device in an automobile bumper, and to a collision between a bumper and a cross member of a vehicle body by installing a cylindrical member supported by a plate spring and a coil spring therein so as to absorb the impact force generated during a collision. The purpose is to ensure the safety of the occupants by effectively absorbing the impact force transmitted to the vehicle body.

In order to achieve the above object, the present invention, the first cylindrical member (3) coupled to the front of the cross member (2) arranged in the transverse direction between the side members (1) which are respectively disposed opposite to both sides of the vehicle body And a second cylindrical member (5) inserted into the first cylindrical member (3) by being elastically supported via the coil spring (4), and screwed so as to cross the cross section at the front end of the second cylindrical member (5). The one end is hinged to the upper and lower ends of the transverse plate spring 8, the longitudinal plate spring 9 and the longitudinal plate spring 9, and the other end is mounted up and down of the cross member 2. It consists of a support member (11) coupled to the bracket (10), a stopper (12) mounted on each of the left and right side members (1) so as to regulate the movement of both ends of the transverse leaf spring (8).

Description

Shock Absorber in Automobile Bumper

The present invention relates to a shock absorbing device inside a vehicle bumper, and in particular, to cushion the impact force transmitted to the vehicle body during the collision of the vehicle through the cross member and the plate spring installed in the bumper and the cylindrical member supported by the coil spring inside The present invention relates to a shock absorbing device inside an automobile bumper that can improve safety of passengers.

In general, the front and rear body of the vehicle is equipped with a bumper to alleviate the impact force applied to the vehicle body in the event of a collision or collision, so that the occupant's safety can be ensured. Bumper stays coupled to the front of the side members disposed on both sides of the vehicle body facing each other, a bumper back beam coupled to the front of the bumper stays, and energy that absorbs / blocks the impact force applied to the vehicle body in the middle of the bumper back beam. The urethane foam material, which is a kind of absorbent material, is generally composed of a bumper fascia that is bonded by being embedded therein.

Therefore, the impact force applied to the vehicle body in the event of a front collision of the vehicle is first damaged by the bumper fascia, and then passes through the bumper fascia to the urethane foam material, which is a kind of energy absorber embedded between the bumper fascia and the bumper back beam. The urethane foam material effectively absorbs the transmitted impact force, thereby minimizing the impact applied to the vehicle body, thereby enabling passenger safety.

However, as described above, the urethane foam material embedded between the bumper fascia and the bumper back beam absorbs the shock applied to the vehicle body during a collision. However, there is a limit in the characteristics of the member, that is, the excessive impact force exceeding the shock absorbency of the urethane foam material. When applied, the impact force exceeding the limit was inevitably absorbed into the vehicle body, which had a disadvantage of being a fatal threat to occupant safety.

Accordingly, the present invention has been made to solve the above disadvantages, install a cylindrical member which is supported by the spring and the coil spring inside to absorb the impact force generated during the collision between the bumper and the cross member of the vehicle body Therefore, it is an object of the present invention to provide a shock absorbing device inside the vehicle bumper that can effectively absorb the impact force transmitted to the vehicle body in the event of a collision.

1 is a plan view illustrating a shock absorbing device inside a vehicle bumper according to the present invention;

2 is a side view of FIG. 1;

3 is a cross-sectional view taken along the line A-A of FIG.

* Description of the symbols for the main parts of the drawings *

1: side member 2: cross member

3: first cylindrical member 4: coil spring

5: second cylindrical member 6: bolt

7: Nut 8: Transverse leaf spring

9: longitudinal plate spring 10: bracket

11: support member 12: stopper

13: Bumper

The present invention for achieving the above object, the first cylindrical member coupled to the front of the cross member disposed in the transverse direction between the side members respectively disposed opposite to both sides of the vehicle body, and to the first cylindrical member A second cylindrical member inserted and supported by a coil spring as a medium, a transverse plate spring and a longitudinal plate spring screwed to intersect in a cross shape at the front end of the second cylindrical member, and the upper and lower sides of the longitudinal plate spring; One end is hinged to both side ends, and the other end is coupled to the brackets mounted on the upper and lower sides of the cross member, and stoppers are mounted on the left and right side members respectively to regulate movement of both ends of the transverse leaf spring. It is made up.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view illustrating a shock absorbing device inside an automobile bumper according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2.

The shock absorbing device inside the vehicle bumper of the present invention, as shown in the figure, cross members (2) disposed in the transverse direction between the side members (1), which are respectively disposed on both sides of the vehicle body to face in the longitudinal direction of the vehicle A first cylindrical member 3 coupled to the front of the second cylindrical member, a second cylindrical member 5 inserted into the first cylindrical member 3 so as to be elastically supported through the coil spring 4, and the second cylindrical member ( 5) The transverse leaf spring (8) and the longitudinal leaf spring (9), which are centrally screwed through the bolt (6) and the nut (7) so as to cross the front end of the cross, in a cross shape. The support member 11 coupled to the bracket 10 mounted on the upper and lower ends of the cross member 2 while the other end is hinged to the upper and lower ends of the cross member 2, and the amount of the transverse leaf spring 8. It consists of a stopper 12 mounted on the left and right side members 1 so as to regulate the movement of the tip portion.

Here, the bumper 13 is mounted in front of the transverse plate spring 8 so as to surround the transverse plate spring 8.

On the other hand, the first cylindrical member (3) provided between the transverse plate spring (8) and the longitudinal plate spring (9) screwed to cross the cross member (2) in a cross shape, and the first cylinder The second cylindrical member 5 inserted into the member 3 so as to be elastically supported through the coil spring 4 is further preferably provided one each on the left and right sides from the center of the cross member 2.

Therefore, the shock absorbing device of the present invention configured as described above, the first cylindrical member through the lateral plate spring (8) and the longitudinal plate spring (9) coupled to the impact force applied to the bumper 13 during the collision It is transmitted to the coil spring (4) disposed between the (3) and the second cylindrical member (5), where the coil spring (4) is first absorbed by the impact force and compressed, and then of the transverse plate spring (8) Both ends are in contact with the stopper 12 mounted on the side member 1 from this time the transverse leaf spring (8) and the longitudinal leaf spring (9) respectively absorbs the impact force to mitigate.

When the shock transmitted to the vehicle body in this way is absorbed by the coil spring 4, the transverse leaf spring 8 and the longitudinal leaf spring 9, the impact transmitted to the vehicle body is reduced by that much, so the safety of the vehicle In addition, the safety of the occupants can be secured.

As described above, according to the shock absorbing device inside the vehicle bumper according to the present invention, between the bumper and the body cross member, a cross member coupled crosswise and a cylindrical member supported by the coil spring disposed inside are installed. Accordingly, it is possible to effectively offset the impact force transmitted to the vehicle body in the event of collision has the effect of expecting the safety of the occupants.

Claims (2)

On the first cylindrical member 3 and the first cylindrical member 3 coupled to the front of the cross member 2 disposed in the transverse direction between the side members 1 respectively disposed opposite to both sides of the vehicle body. The second cylindrical member 5 inserted and supported by the coil spring 4 as a medium, and the transverse plate spring 8, which is screwed to cross in a cross shape at the front end of the second cylindrical member 5, Directional plate spring 9, the support member 11 is coupled to the upper and lower ends of the longitudinal plate spring 9, the other end is coupled to the bracket 10 mounted up and down of the cross member (2) ), A shock absorbing device in a vehicle bumper, comprising a stopper (12) mounted on the left and right side members (1) so as to restrict movement of both ends of the transverse leaf spring (8). 2. The first cylindrical member (3) according to claim 1, wherein the first cylindrical member (3) is provided between the cross member (2), the transverse leaf spring (8) and the longitudinal leaf spring (9). The second cylindrical member (5) inserted into the coil spring (4) so as to be supported on the side of the coil spring, the impact inside the bumper of the vehicle, characterized in that it is appropriately installed in a plurality of right and left sides from the center of the cross member (2) Absorber.