JPS5655702A - Hydraulic cylinder cushion device also serving as speed control function - Google Patents

Hydraulic cylinder cushion device also serving as speed control function

Info

Publication number
JPS5655702A
JPS5655702A JP13228879A JP13228879A JPS5655702A JP S5655702 A JPS5655702 A JP S5655702A JP 13228879 A JP13228879 A JP 13228879A JP 13228879 A JP13228879 A JP 13228879A JP S5655702 A JPS5655702 A JP S5655702A
Authority
JP
Japan
Prior art keywords
piston
flow rate
orifice
under
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP13228879A
Other languages
Japanese (ja)
Other versions
JPS6324164B2 (en
Inventor
Ryosuke Koga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP13228879A priority Critical patent/JPS5655702A/en
Publication of JPS5655702A publication Critical patent/JPS5655702A/en
Publication of JPS6324164B2 publication Critical patent/JPS6324164B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To allow speed control depending on a stroke load by providing a flow rate detecting orifice at the stroke end of a cylinder, and a flow rate control valve which controls an oil volume swept out from the cylinder according to a pressure difference between the front and rear parts in the orifice.
CONSTITUTION: A primary flow rate control orifice is formed in such a way that a boss 4 is united with the internal end of a rod 3 of a piston 2 and inserted into a control port 5. The first and second ports 10, 11 are formed in a body 9 of a flow rate control valve 8 and respecrively open to two small holes 15, 16 and 17. And paths 27, 28 of a directional control valve 26 are respectively communicated with a port 11 and a side chamber 7 inside the piston 2. For moving the piston 2 in the direction of an arrow 31 under a high load, gas pressures in the small holes 15, 16 grows high and applied to a spool 14 so that the moving action of the piston 2 is slowed down. Under a low load, the action is quicker than that under the high load.
COPYRIGHT: (C)1981,JPO&Japio
JP13228879A 1979-10-13 1979-10-13 Hydraulic cylinder cushion device also serving as speed control function Granted JPS5655702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13228879A JPS5655702A (en) 1979-10-13 1979-10-13 Hydraulic cylinder cushion device also serving as speed control function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13228879A JPS5655702A (en) 1979-10-13 1979-10-13 Hydraulic cylinder cushion device also serving as speed control function

Publications (2)

Publication Number Publication Date
JPS5655702A true JPS5655702A (en) 1981-05-16
JPS6324164B2 JPS6324164B2 (en) 1988-05-19

Family

ID=15077771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13228879A Granted JPS5655702A (en) 1979-10-13 1979-10-13 Hydraulic cylinder cushion device also serving as speed control function

Country Status (1)

Country Link
JP (1) JPS5655702A (en)

Also Published As

Publication number Publication date
JPS6324164B2 (en) 1988-05-19

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