CN-224210857-U - Suspension device

Abstract

The present disclosure relates to a suspension apparatus including a lower arm connected to a wheel frame and configured to be rotatable up and down according to movement of the wheel frame, a frame portion connected to the lower arm and configured to receive movement of the wheel frame, and a restraining portion provided on the frame portion and configured to restrain a rotation range of the lower arm. The suspension device according to the present disclosure can ensure the distance and space between the parts disposed inside the suspension device by eliminating the shock absorber.

Inventors

• SONG YUBIN

Assignees

• 现代摩比斯株式会社

Dates

Publication Date

20260508

Application Date

20250606

Priority Date

20240729

Claims (10)

1. 1. A suspension device is characterized in that, the suspension device includes: a lower arm connected to the wheel frame and configured to be rotatable up and down according to movement of the wheel frame; A frame portion connected to the lower arm and configured to receive movement of the wheel frame, and And a restraining portion provided on the frame portion and configured to restrain a rotation range of the lower arm.
2. 2. The suspension device according to claim 1 wherein: Wherein the lower arm comprises a first fixing hole opposite to the wheel frame, and Wherein the frame portion includes a second fixing hole provided to face the first fixing hole, The suspension device further includes a fixing member that passes through the first fixing hole and the second fixing hole and serves as a rotation center axis of the lower arm.
3. 3. The suspension device according to claim 2 wherein the frame portion includes a guide hole provided opposite the wheel frame with respect to the second fixing hole, and the guide hole is configured to guide movement of the restraining portion on the frame portion.
4. 4. A suspension device according to claim 3, wherein the restraining portion includes: a shaft portion inserted into the guide hole, and A step portion connected to the shaft portion and provided to protrude outward with a larger diameter than the guide hole to prevent the shaft portion from moving.
5. 5. The suspension device according to claim 4 wherein the lower arm includes a restraining hole having the same diameter as the shaft portion.
6. 6. The suspension device according to claim 4 wherein the guide hole has a curved surface that is in perpendicular contact with the shaft portion.
7. 7. The suspension device according to claim 4 wherein the guide hole has a surface that contacts the shaft portion on left and right sides and has the same curvature based on the rotation center axis of the lower arm.
8. 8. The suspension device according to claim 4 wherein the guide hole has a vertically elongated shape and restricts a range of rising or falling of the lower arm connected to the wheel frame when the wheel frame is rotated upward or downward.
9. 9. The suspension device according to claim 8 wherein the shaft portion includes a spacer portion disposed between the lower arm and the frame portion.
10. 10. The suspension device according to claim 9 wherein the spacer comprises a material having a lower hardness than the lower arm and the frame portion to mitigate friction occurring with the lower arm at a contact surface when the lower arm rotates upward or downward.

Description

Suspension device Technical Field Exemplary embodiments of the present disclosure relate to a suspension device, and more particularly, to a suspension device mounted to improve riding comfort by absorbing shock or impact generated between an axle and a road surface when a vehicle travels. Background In general, a suspension device of a vehicle is a device that is connected to an axle to control vibration or shock from a road surface when the vehicle is running, so that the vibration or shock is not directly transmitted to a vehicle body and riding comfort is improved. The suspension device includes a coil spring, a damper that controls free vibration of the coil spring, and a stabilizer bar that suppresses a roll phenomenon of the vehicle. A conventional shock absorber is installed between a vehicle body and wheels to absorb natural shock caused by impact received by a coil spring while the vehicle is traveling. Depending on the position and the movement characteristics of the shock absorber mounted on the vehicle body, the shock absorber may have different structures of the connection parts. However, many parts such as washers and bushings are required to mount the shock absorber. The rubber bushing of the shock absorber may continuously contract and expand. In this case, the rubber bushing may be torn or worn due to the continuous repeated movement. The background art of the present disclosure is disclosed in korean patent application No. 10-2024-0002483 (published on 2024, 3-11, subject "rear shock absorber for vehicle"). Disclosure of utility model Various embodiments of the present disclosure relate to a suspension device capable of reducing the weight of a vehicle and securing a space between internal vehicle components by eliminating a shock absorber. In an embodiment of the present disclosure, the suspension device includes a lower arm connected to a wheel frame and configured to be rotatable up and down according to movement of the wheel frame, a frame portion connected to the lower arm and configured to receive movement of the wheel frame, and a restraining portion provided on the frame portion and configured to restrain a rotation range of the lower arm. The lower arm includes a first fixing hole provided opposite to the wheel carrier, and wherein the frame portion includes a second fixing hole provided to face the first fixing hole, and the suspension device further includes a fixing member that passes through the first fixing hole and the second fixing hole and serves as a rotation center axis of the lower arm. The frame portion includes a guide hole provided opposite to the wheel frame with respect to the second fixing hole, and the guide hole is configured to guide movement of the restraining portion on the frame portion. The restraining portion includes a shaft portion inserted into the guide hole, and a step portion connected to the shaft portion and provided to protrude outward with a larger diameter than the guide hole to prevent the shaft portion from moving. The lower arm includes a constraint hole having the same diameter as the shaft portion. The guide hole has a curved surface in perpendicular contact with the shaft portion. The guide hole has surfaces that are in contact with the shaft portion on the left and right sides and has the same curvature based on the rotation center axis of the lower arm. The guide hole has a vertically elongated shape and restricts a range of ascending or descending of the lower arm connected to the wheel frame when the wheel frame rotates upward or downward. The shaft portion includes a spacer disposed between the lower arm and the frame portion. The spacer includes a material having a lower durometer than the lower arm and the frame portion to mitigate friction with the lower arm at a contact surface as the lower arm rotates upward or downward. The suspension device according to the present disclosure can ensure the distance and space between the parts disposed inside the suspension device by eliminating the shock absorber. The suspension device according to the present disclosure can reduce the weight of the vehicle by eliminating the shock absorber. The suspension device according to the present disclosure can reduce the manufacturing cost of the shock absorber by eliminating the shock absorber. Drawings Fig. 1 is a perspective view schematically showing a suspension device according to an embodiment of the present disclosure. Fig. 2 schematically illustrates a suspension device according to an embodiment of the present disclosure. Fig. 3 schematically illustrates a lower arm of a suspension device according to an embodiment of the present disclosure. Fig. 4 schematically illustrates a frame portion of a suspension device according to an embodiment of the present disclosure. Fig. 5 schematically illustrates a fixing member of a suspension device according to an embodiment of the present disclosure. Fig. 6 schematically illustrates a stationary shaft