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Title:
BOOSTER CYLINDER DEVICE
Document Type and Number:
Japanese Patent JP2012137106
Kind Code:
A
Abstract:

To provide a booster cylinder device that prevents cracks in a cylinder tube in the connecting portion between a first cylinder and a second cylinder, and increases a boost rate of the first cylinder.

A boost cylinder device 1 is a hydraulic booster cylinder formed by connecting a first cylinder portion 2 and a second cylinder portion 3 in series. By pressing a second piston rod 32 of the second cylinder portion 3 into an oil body supplied to the first cylinder portion 2, the pressure of the oil body of the first cylinder portion 2 side is increased to increase the pressure of the output of the first piston rod 22. In addition, a cylinder tube 10 of the first cylinder portion 2 and the second cylinder portion 3 are integrated. In the cylinder tube 10, a partition wall 11 tightly penetrating through the second piston rod 32 is provided between a first piston 21 and a second piston 31.


Inventors:
MOCHIZUKI MASANORI
Application Number:
JP2010000287734
Publication Date:
July 19, 2012
Filing Date:
December 24, 2010
Export Citation:
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Assignee:
ISEL CO LTD
International Classes:
F15B15/14; F15B3/00
Domestic Patent References:
JP2003269412A2003-09-25
JP2000009104A2000-01-11
JP2001248676A2001-09-14
JPS5289587U1977-07-04
JPS50112891U1975-09-13
JPS4735675A
Foreign References:
US3832851A1974-09-03
Attorney, Agent or Firm:
宮崎 栄二
原田 智裕



 
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