Title:
BUFFER
Document Type and Number:
Japanese Patent JP2016121704
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a buffer capable of improving the productivity.SOLUTION: A buffer comprises: a piston 15 that divides the interior of a cylinder into two chambers; a piston rod 21 that is extended to the outside of the cylinder while being connected to the piston 15; a communication passage 131 that communicates between the two chambers so that working fluid flows through between the two chambers by the movement of the piston 15; a first magnetic attraction part that is arranged in the cylinder so as to make the position in a circumferential direction different depending on the position in an axial direction; a passage area variable mechanism 132 that is provided in the piston so as to make the passage area of the communication passage 131 different depending on the position in a circumferential direction; and a second magnetic attraction part 105 that is provided in the passage area variable mechanism 132 so as to make the position of the passage area variable mechanism 132 in a circumferential direction different following the first magnetic attraction part by magnetically attracting the first magnetic attraction part in each other.SELECTED DRAWING: Figure 2
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Inventors:
MIZUUCHI TAKAO
Application Number:
JP2014260379A
Publication Date:
July 07, 2016
Filing Date:
December 24, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
F16F9/48; F16F9/32; F16F9/34
Domestic Patent References:
| JP2004347106A | 2004-12-09 | |||
| JPH08247194A | 1996-09-24 | |||
| JP2009008145A | 2009-01-15 | |||
| JP2005291338A | 2005-10-20 |
Attorney, Agent or Firm:
Masatake Shiga
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