KR980002963A

KR980002963A - Hydraulic shock absorber adjusting damping force

Info

Publication number: KR980002963A
Application number: KR1019960029099A
Authority: KR
Inventors: 다카오 나카다테
Original assignee: 이시다 고조; 도키코 가부시키가이샤
Priority date: 1996-06-20
Filing date: 1996-07-19
Publication date: 1998-03-30
Also published as: JPH109327A; KR100211201B1

Abstract

감쇠력 조정식 유압 완충기에 있어서, 감쇠력 특성의 설정 자유도를 높인다. 실린더(2)에 피스톤 로드(6)을 연결한 피스톤(5)를 끼워 만들고, 역지 밸브(16)를 통해 저장기(4)에 접속한다. 실린더 상ㆍ하측실(2a, 2b)사이를 오일로(11)에 의해 연통시키고, 오일로(11)에 디스크 밸브(12)를 설치한다. 실린더 상측실(2a)과 저장기(4)를 감쇠력 조정 기구(17)를 통해 연통시킨다. 피스톤 로드(6)의 신축 행정(行程)시와 함께 오일이 실린더 상측실(2a)로부터 감쇠력 조정 기구(17)를 통해 저장기(4)로 흐르고, 감쇠력 조정기구(17)에 의해 감쇠력이 발생한다. 수축 행정시에는 오일이 오일로(11)를 통해 실린더 하측실(2b)로부터 실린더 상측실(2a)로 흐르며, 디스크 밸브(12)에 의해서도 감쇠력이 발생한다. 디스크 밸브(12)의 특성에 의해서 수축측의 감쇠력 특성이 변화하기 때문에, 감쇠력 특성의 설정 자유도를 높일 수 있다.In the damping force control type hydraulic shock absorber, the degree of freedom in setting the damping force characteristic is increased. The piston 5 connected to the piston rod 6 is fitted to the cylinder 2 and connected to the reservoir 4 through the check valve 16. [ The space between the cylinder upper and lower chambers 2a and 2b is communicated by the oil path 11 and the disk valve 12 is installed in the oil path 11. [ The cylinder upper chamber 2a and the reservoir 4 are communicated through the damping force adjusting mechanism 17. [ The oil flows from the cylinder upper chamber 2a to the reservoir 4 through the damping force adjusting mechanism 17 and the damping force is generated by the damping force adjusting mechanism 17 when the piston rod 6 is extended or retracted do. The oil flows from the cylinder lower chamber 2b to the cylinder upper chamber 2a through the oil passage 11 and the damping force is also generated by the disc valve 12. [ The damping force characteristic on the contraction side changes depending on the characteristics of the disc valve 12, so that the degree of freedom in setting the damping force characteristic can be increased.

Description

Hydraulic shock absorber adjusting damping force

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 일실시형태에 관한 감쇠력 조정식 유압 완충기의 종단면도.FIG. 1 is a longitudinal sectional view of a damping force adjusting type hydraulic shock absorber according to an embodiment of the present invention. FIG.

제2도는 제1도의 장치의 주요부의 확대도.Figure 2 is an enlarged view of the main part of the device of Figure 1;

제3도는 제1도의 장치의 감쇠력 특성을 도시하는 도면.3 shows the damping force characteristic of the device of FIG. 1; FIG.

제4도는 제1도의 장치의 수축측의 소프트 특성의 감쇠력 특성을 도시하는 도면.4 shows the damping force characteristic of the soft characteristic on the contraction side of the device of Fig. 1; Fig.

Claims

A piston which is slidably fitted in the cylinder and which divides the cylinder into a first chamber and a second chamber; a piston which is connected to the piston and whose other end is connected to the piston; A piston rod extending to the outside of the cylinder through one chamber; a first communication path provided in the piston and communicating between the first chamber and the second chamber; and a second communication path provided in the first communication path, A first check valve for allowing the oil to flow from the actual side to the first chamber side and generating a damping force; a second communication passage for communicating the second chamber and the reservoir; A second check valve which allows only the flow of oil from the first side to the second side, a main passage which communicates the first chamber and the reservoir, and a second passage which is provided in the main passage for controlling the flow of oil and generating a damping force Adjusting soeryeok possibly a damping force adjusting mechanism damping force adjustable hydraulic shock absorber comprising: a.

The damping-force adjusting mechanism according to claim 1, wherein the damping-force adjusting mechanism comprises: a pilot-type main damping valve that opens the valve in accordance with the oil pressure of the main passage and generates a damping force according to the opening degree, And a pilot orifice and a variable orifice disposed in series with the sub-passage, wherein the pilot-type main damping valve is connected to the fixed orifice of the sub- And the pilot pressure is obtained between the variable orifices.

※ Note: It is disclosed by the contents of the first application.