Title:
TEMPORARY ENCAPSULATION PLUG AND HYDRAULIC PRESSURE APPARATUS USING THE SAME
Document Type and Number:
Japanese Patent JP2014190500
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable an engaging or disengaging of a temporary encapsulation plug for liquid- tightly closing a pipe connection port arranged at a housing of a hydraulic pressure apparatus against the port to be carried out under well workability without damaging a seal surface.SOLUTION: A temporary encapsulation plug 1 comprises a base end part 2 that can be abutted against an end surface around a port opening of a hydraulic pressure device; a resilient deformable barrel part 4 in which a front end outer diameter under a free state is smaller than a hole diameter of a port P and a seal surface 5 is arranged at an outer periphery; a shaft hole 6; and an operating rod 7. A pressing element 7c of the operating rod 7 is press fitted into an inner diameter side of the barrel part 4, a seal surface forming part of the barrel part 4 is expanded in its diameter, the seal surface 5 is press contacted with the hole surface of the port P and simultaneously the opening of the barrel part 4 is liquid-tightly closed.
More Like This:
Inventors:
NARADANI MASAKAZU
YOKOYAMA MIKA
YOKOYAMA MIKA
Application Number:
JP2013068860A
Publication Date:
October 06, 2014
Filing Date:
March 28, 2013
Export Citation:
Assignee:
ADVICS CO LTD
International Classes:
F16J13/14; B60T17/04
Attorney, Agent or Firm:
Bunji Kamata
Naoya Kamata
Takayoshi Tagawa
Yaichiro Nakatani
Naoya Kamata
Takayoshi Tagawa
Yaichiro Nakatani