Valve structure
View Patent ↗A valve structure includes a valve disc partitioning an interior of a damper into a one-side chamber and an other-side chamber, a plurality of one-side ports and a plurality of other-side ports communicating between the one-side chamber and the other-side chamber, a one-side leaf valve opening and closing only the one-side ports, and an other-side leaf valve opening and closing only the other-side ports, the one-side ports and the other-side ports are alternately arranged in the valve disc along the circumferential direction, and a plurality of through holes formed in the valve disk is opened from the inner circumferential side of openings of all the other-side ports and communicates with the one-side ports.
1. A valve structure, comprising:
a valve disc partitioning an interior of a damper into a one-side chamber and an other-side chamber;
a plurality of one-side ports provided in the valve disc and communicating between the one-side chamber and the other-side chamber;
a plurality of other-side ports provided in the valve disc and communicating between the one-side chamber and the other-side chamber;
an annular one-side leaf valve laminated in an other-side chamber end of the valve disc and opening and closing only the one-side ports among the one-side ports and the other-side ports; and
an annular other-side leaf valve laminated in a one-side chamber end of the valve disc and opening and closing only the other-side ports among the one-side ports and the other-side ports, wherein
the one-side ports and the other-side ports are alternately arranged in the valve disc along the circumferential direction of the valve disc,
a plurality of through holes formed in the valve disc is opened from the inner circumferential side of openings of all the other-side ports in the one-side chamber end of the valve disc and communicates with the one-side ports,
the other-side leaf valve opens and closes the one-side chamber end of the through holes accompanying the opening and the closing of the other side ports.
2. The valve structure according to claim 1 , wherein
dents formed in the valve disc are respectively provided on the inner circumferential side of the openings of all the other-side ports in the one-side chamber end of the valve disc, and
the through holes are opened in the dents.
3. The valve structure according to claim 1 , comprising:
an annular window provided in the other-side chamber end of the valve disc and leading to openings on the side of the other-side chamber of all the one-side ports, wherein
the through holes communicate with the one-side ports via the annular window.
4. The valve structure according to claim 1 , wherein
the valve disc is a piston slidably inserted into a cylinder in the damper and partitioning an interior of the cylinder into an extension side chamber and a pressure side chamber, and
the one-side chamber is the extension side chamber, and the other-side chamber is the pressure side chamber.
5. The valve structure according to claim 1 , wherein the one-side leaf valve and the other-side leaf valve are formed by laminating a plurality of annular plates.
6. The valve structure according to claim 1 , wherein the one-side ports and the through holes are provided on a same circumference of the valve disc.
7. The valve structure according to claim 1 , wherein independent windows, formed in the one-side chamber end of the valve disc, are provided on the openings of all the other-side ports, and
the through holes are opened to the radially inner circumferential side of the independent windows on the valve disc.
8. The valve structure according to claim 1 , wherein independent windows, formed in the one-side chamber end of the valve disc, are provided on the openings of all the other-side ports, and
dents are opened to the radially inner circumferential side of the independent windows on the valve disc.
9. The valve structure according to claim 1 , wherein the annular other-side leaf valve closes the other-side ports so as to block fluid communication between the other-side ports and the through holes.
10. A damper, comprising:
a damper body having an interior space;
a valve disc partitioning the interior space of the damper body into a one-side chamber and an other-side chamber;
a plurality of one-side ports provided in the valve disc and providing communication between the one-side chamber and the other-side chamber;
a plurality of other-side ports provided in the valve disc and providing further communication between the one-side chamber and the other-side chamber;
an annular one-side leaf valve disposed on a side of an other-side chamber end of the valve disc and opening and closing only the one-side ports among the one-side ports and the other-side ports;
an annular other-side leaf valve disposed on a side of a one-side chamber end of the valve disc and opening and closing only the other-side ports among the one-side ports and the other-side ports; and
a plurality of through holes formed in the valve disc to have one-side chamber end openings in the one-side chamber end of the valve disc at an inner circumferential side of openings of all the other-side ports, the through holes communicating with the one-side ports, wherein
the one-side ports and the other-side ports are alternately arranged in the valve disc along a circumferential direction of the valve disc, and
the other-side leaf valve opens and closes the one-side chamber end openings of the through holes accompanying the opening and the closing of the other-side ports.
11. The damper according to claim 10 , wherein the annular other-side leaf valve closes the other-side ports so as to block fluid communication between the other-side ports and the through holes.